There is the legacy of my twin sister and me continuing the mission of our mother’s work. You or your doctor may be able. Adult acute myeloid leukemia (AML) is a type of cancer in which the bone marrow makes a large number of abnormal blood cells. It is a form of leukemia characterized by the increased and unregulated growth of myeloid cells in the bone marrow and the accumulation of these cells in the blood. Pathophysiology. Bone pain. On this page. It is the most common type of acute lymphoblastic leukemia (ALL). whether the leukaemia is acute (faster growing. Acute Myeloid Leukemia. Leukemia is a type of cancer found in your blood and bone marrow and is caused by the rapid production of abnormal white blood cells. The production of abnormal leukocytes defines leukemia as either a primary or secondary process. Acute leukaemia means it progresses quickly and aggressively, and usually requires immediate treatment. AML is characterised by an overproduction of immature white blood cells, called myeloblasts or leukaemic blasts. The FVRCP is a core vaccine for cats, meaning veterinary professionals agree that all cats. AML happens when blasts don't mature and build up in your bone marrow. However, high immature granulocyte levels can also be normal during pregnancy and in newborns. The American Cancer Society offers free information in Hindi about cancer prevention, early detection, treatment, and survivorship. Abdominal discomfort related to an enlarged spleen and liver called hepatosplenomegaly. These abnormal white blood cells are not able to fight infection and impair the ability of the bone marrow to produce red blood cells and platelets. [1] Most of the health concerns associated with polycythemia vera are caused by the blood being thicker as a result of the increased red blood cells. A low absolute neutrophil count is referred to as neutropenia . If the IgA blood test results are high, but other immunoglobulin testing results are normal, then this can be an indication that multiple myeloma, leukemia, or lymphoma has developed. Radiation exposure (i. Overview of Leukemia Leukemias are cancers of. Complete remission is defined as having fewer than than 5% blast cells in the bone marrow, blood cell counts that are normal and absence of any disease signs or symptoms. Benzene is a chemical that is a colorless or light yellow liquid at room temperature. Fever. Determining the underlying cause will require further investigation, but early detection provides the best. These risk groups are used later in Treatment of Chronic Lymphocytic Leukemia. Leukemia starts in the bone marrow, so checking the bone marrow for leukemia cells is a key part of testing for it. A decreased number of red blood cells (anemia) can lead to pallor and fatigue, while a decreased number of functional white blood cells (neutropenia) predispose affected individuals to infections. Twitter; Wikitubia NetworkThis can cause more or abnormal bleeding and bruising, such as bleeding gums or nosebleeds. Leukemia is a type of cancer that affects the white blood cells. The stem cells are committed to produce specific types of blood cells. [2] Later, non-painful lymph node swelling, feeling tired, fever, night sweats, or weight loss for no clear reason may occur. It is cancer that affects white blood cells known as B-cell lymphoblasts. Children from 4 to 10 years. This test is often done along with a differential (or diff) which looks at the numbers of the different types of white blood cells. Fever. The term leukemia means white blood. Acute leukemia is life-threatening and requires immediate initiation of therapy. Acute lymphocytic leukemia (ALL) Acute myeloid leukemia (AML) Chronic lymphocytic leukemia (CLL) Chronic myeloid leukemia (CML) Less common leukemias. • Process takes two to four hours and is similar to a regular blood donation. Acute myeloid leukemia (AML) is a type of blood cancer. Easy bruising. The bottom line. Luke is an English form of the Latin Lucas, from the Greek name Loukas meaning "from Lucania," referring to the region in southern Italy. Chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL) is an indolent malignancy characterized by increased production of mature but dysfunctional B lymphocytes. Leukemia cells also don't die when they should. feel dizzy or lightheaded. • Treatments include chemotherapy, radiation, stem cell transplant, surgery, immunotherapy. Your symptoms can be caused by your low monocyte count or by other blood cell abnormalities, such as leukopenia (low white blood cells) or anemia. Fever, chills, night sweats and weight loss, which are collectively known as constitutional or “B” symptoms, are also common in APL. Ans. There are different types of leukemia. The elevation can be caused by many different conditions and may be an indicator of a severe infection, an inflammatory disorder, or cancer. A mean corpuscular volume (MCV) blood test measures the size of your red blood cells. There are different types of leukemia. Luke-emia, presence of Luke in blood. KC presenting to the emergency room unconscious. Leukaemia (sometimes spelt as leukemia) is a cancer of the blood cells. It occurs when the bone marrow beings to make blasts, cells that have not yet completely matured. Understanding Your Lab Test Results. The most common symptom is a very high white blood cell count. Feeding Snake Dream Meaning. As an organization, The Leukemia & Lymphoma Society (LLS) has invested more than $1. Learn more here. Infection rates are significantly higher (up to 30%) in cats that are ill or otherwise at high risk (see below). AML is also known as acute myelogenous leukemia, acute myeloblastic leukemia, acute granulocytic leukemia or acute nonlymphocytic leukemia. Long-term exposure to benzene. Acute myeloid leukemia (AML) is the most common leukemia among the adult population and accounts for about 80% of all cases. Pain in the upper left portion of the abdomen, which may be caused by an enlarged spleen. ThrombocytopeniaLeukemia is a type of blood cancer that affects the blood cells and bone marrow, a tissue inside bones where blood cells and platelets are made. 1510 (eimí), and its counterparts, (properly) convey "straight-forward" being (existence, i. Fortunately, the prevalence of FeLV in cats has decreased significantly in the past 25. noun leu· ke· mia lü-ˈkē-mē-ə : an acute or chronic disease in humans and other warm-blooded animals characterized by an abnormal increase in the number of white blood cells in the tissues and often in the blood leukemic lü-ˈkē-mik adjective or noun Examples of leukemia in a Sentence Leukemia is a cancer of the blood cells. There are three main types of blood cancer: Leukemia: Cancer in the white blood cells. CLL is typically found when you get a blood test for another reason. Monocytes are one of the five different types of. Getting a diagnosis. Fever. In lymphoma, cancerous white blood cells form tumors in. This stem cell goes through stages of development. Exposure to agents used to cure or control other cancers, including radiation. without explicit limits). Leukemia is a type of cancer. Easy bruising and bleeding are common symptoms of leukemia. تختلف أعراض ابيضاض الدم باختلاف نوعه. Simply put, it’s when your immune system isn’t working as well as it should to protect you from infection—or that your immune system can’t distinguish between normal and foreign cells. Frequent or severe nosebleeds. Thrombocytopenia (low platelets) can cause increased bruising or bleeding from the mouth or nose. Chronic myelogenous leukemia is a disease in which the bone marrow makes too many white blood cells. Demanding and untrusting in relationships. “Preleukemia” was a term doctors previously used for myelodysplastic syndrome (MDS). This article explains granulocytes, the different types of immune cells, and. High immature granulocyte levels can be a sign of a problem with your bone marrow, infections, allergic reactions, or inflammation from an underlying health condition. In AML-M5 >80% of the leukemic cells are of monocytic lineage. Blood samples for ALL tests are generally taken from a vein in the arm. There are no symptoms of high monocytes. especially : aleukemic leukemia. Bone and soft tissue sarcomas are the main types of sarcoma. Eventually, symptoms may include any of the following: Anemia and related symptoms, such as fatigue, pallor, and a general. Leukemia is cancer that starts in the bone marrow. It works by making the red blood cells more flexible. White blood cell count (WBC) This test measures the number of white blood cells in a drop (microliter) of blood. Each color of ribbon is linked to a specific cause, such as the 🎀 Pink Ribbon for breast cancer. Ani is short for Anakin and Chewie is short for Chewbacca. 0 to 0. Leukemia cells are early forms of blood cells. Soft tissue sarcomas can develop in soft tissues like fat. • Symptoms include fever, chills, fatigue, weakness, weight loss, bone and joint pain, anemia. 7 billion in blood cancer research since its inception in 1949—all with the hope that this research leads to scientific breakthroughs that improve and save lives. A person who has APL may experience various symptoms, including: a pale complexion due to anemia, which may not be apparent in people with darker skin. The meaning of MYELOGENOUS LEUKEMIA is leukemia characterized by proliferation of myeloid tissue (as of the bone marrow and spleen) and an abnormal increase in the number of granulocytes, myelocytes, and myeloblasts in the circulating blood —called also myelocytic leukemia, myeloid leukemia. This might be followed by a stem cell transplant. Learn more about the types, symptoms, diagnosis, and treatment of leukemia. Leukemia is a cancer of the body’s bone marrow, which is where your blood cells are made. People with familial acute myeloid leukemia with mutated CEBPA have a shortage of white blood cells (leukopenia), leading to increased susceptibility to infections. Bone marrow biopsy. It may be autologous (the patient's own stem cells are used), allogeneic (the stem. Enlarge. Treatment. There are several broad categories of blood cells, including red blood cells (RBCs), white blood cells (WBCs), and platelets. Symptoms include fatigue, pallor, easy bruising and bleeding, fever, and. Leukemia symptoms vary, depending on the type of leukemia. Swollen lymph nodes. In cancer care, this blood test can be used to help diagnose a cancer or monitor how cancer or its. Each of the four types of. Exposure to agents used to cure or control other cancers, including radiation. noun. From IMDb: Princess Leia:. This information is intended for people living in the United States who may have a primary language other than English. Malignant neoplasm of blood-forming tissues; characterized by abnormal proliferation of leukocytes; one of the four major types of cancer. if there are additional or prior diagnoses that pertain to hematologic or lymphatic conditions, list using above format: section i - diagnosisCancer treatments can be lifesaving. bleeding and swollen gums. Many people with chronic lymphocytic leukemia have no symptoms at first. 5 x 10^9/L. People with AML often have several non-specific (general) symptoms. These results support the finding of an excess risk of leukemia in humans. Acute lymphocytic leukemia (ALL) is a cancer of the immature lymphocytes. The main types of acute leukemia are: Acute lymphocytic (lymphoblastic) leukemia (ALL): About 3 out of 4 childhood leukemias are ALL. Background Blastic plasmacytoid dendritic cell neoplasm (BPDCN) was previously known as natural killer (NK) cell leukemia/lymphoma. Over time, the abnormal cells overtake the normal cells. Fortunately, the prevalence of FeLV in cats has decreased significantly in the past 25. Read on to learn about the four most common types of leukemia. Most often, leukemia is a cancer of the white blood cells, but some leukemias start in other blood cell types. loss of appetite. Acute lymphocytic leukemia is a type of acute leukemia. Infections. Acute lymphocytic leukemia (ALL) is a type of cancer that affects your blood and bone marrow. These leukemias start in early forms of white blood cells called lymphocytes. More Information. Background Blastic plasmacytoid dendritic cell neoplasm (BPDCN) was previously known as natural killer (NK) cell leukemia/lymphoma. -emia: or -hemia also -aemia or -haemia suff. Leukemia is a cancer of the blood or bone marrow, which produces blood cells. Affected individuals also have a reduction in the amount of platelets. This is often a result of environmental stressors that cause abnormal changes in these cells. It is called "smoldering" because it doesn't produce symptoms, but also doesn't resolve. What all cancers have in common is that the cancer cells are abnormal and do not respond to normal control mechanisms. Twitter; Wikitubia NetworkThe symptoms of chronic myeloid leukemia (CML) are often vague and are more often caused by other things. It is modified and given essential meaning by the suffix ~emia, meaning _____ _____. Gender: Luke is traditionally the masculine form of the name. Swollen lymph nodes in your neck, armpits, stomach, or groin; lymph nodes are pea-sized glands in these and other areas of your body. INTRODUCTION. entity, regardless of whether it is a “corporation” within the meaning of Section 4. When someone has this disease, the cells normally. A low MCV means your red blood cells are smaller than average, which could indicate iron deficiency anemia. Early on, there are typically no symptoms. That would be B cells or T cells. Acute lymphocytic (or lymphoblastic) leukemia is sometimes called ALL. Signs and symptoms might develop as the cancer progresses. Common leukemia signs and symptoms include: Fever or chills. , Breaking down and defining the key components in a term often defines the term or gives clues to its meaning. He was chosen out of necessity, to answer Leia's call for help. Easy bleeding or bruising. रक्ताचा. It happens when there are too many of the blood-forming cells called promyelocytes in the blood and bone marrow. It starts in the bone marrow where blood cells are made. It accounts for about 5 percent of all new cancer cases in the. A low number of red blood cells ( anemia) also occurs in this disorder, resulting in fatigue and weakness. Learn more here. Boris , real name William Pratt . It's a type of cancer that starts in cells that become certain white blood cells (called lymphocytes) in the bone marrow. ALL (acute lymphocytic leukemia) is the most common leukemia in children. Acute lymphocytic leukemia (ALL) is a cancer of the blood and bone marrow. They might include: Enlarged, but painless, lymph nodes. It happens when healthy white blood cells ( lymphocytes) in your bone marrow mutate, or change, into cancerous cells that multiply and crowd out healthy blood cells and platelets. It explains the conditions. e. Other causes include nephritic syndrome, some types of leukemia and common variable immunodeficiency. Symptoms. This can lead to symptoms such as headaches, trouble concentrating, weakness, seizures, vomiting, problems with balance, and blurred vision. Most people with CML have a gene mutation (change) called the. Leukemia has several possible causes. They are measured by the number of white blood cells per cubic millimeter of blood (cells/mm3). Many types of leukemia produce no obvious symptoms in the early stages. e. Among the many different types of leukemia, some are less common than others. Symptoms occur as the normal cells fail to perform their tasks, leading to infections and pain. More often they are caused by something other than leukemia. Shortness of breath. g. leukemia definition: 1. Frequent or severe nosebleeds. The prognosis for acute myeloid leukemia varies depending on age, subtype, and response to treatment. "to be") – am, is. Anxiety and depression: The emotional toll of facing end stage leukemia. Childhood acute lymphoblastic leukemia (also called ALL or acute lymphocytic leukemia) is a cancer of the blood and bone marrow. T-cell leukemia is an uncommon type of blood cell cancer that affects your white blood cells. Formerly also leucemia. Depending on the techniques used, such as morphology by manual microscopy, immunohistochemistry, and flow cytometry, blasts are recognized and enumerated by different characteristics and. Headache and other neurological symptoms. Treatment. The NHS provides more information on leukaemia symptoms and blood cancer symptoms, broken down by leukaemia type. Therefore ALL is not staged like most other cancers. Leukemia is a cancer of the early blood-forming cells. Tissue damage from a burn injury or surgery. A marked increase of dacrocytes is known as dacrocytosis. The result may be a feeling of. The samples are usually taken from the back of the pelvic (hip) bone, but sometimes other bones are. Lack of appetite, stomachache, and weight loss. CML causes an increased number of white blood cells in the blood. A high neutrophil count and a low neutrophil count can occur as a result of certain infections, diseases, autoimmune disorders, cancers, medications, or medical treatments. Gender: Luke is traditionally the masculine form of the name. Apheresis. Doctors separate the Rai stages into low-, intermediate-, and high-risk groups when determining treatment options. Key takeaways: The FVRCP vaccine protects cats against three highly contagious and dangerous diseases. This medicine is available only with your doctor's prescription. At levels below 1,000, you are at an increased risk of infection. Leukemia cutis is a rare complication of leukemia. The symptoms depend on the type of blood cell that’s being affected. Acute lymphoblastic leukemia (acute lymphocytic leukemia, ALL) is a malignant (clonal) disease of the bone marrow in which early lymphoid precursors proliferate and replace the normal hematopoietic cells of the marrow. These patients often have fever, poor appetite, and weight loss. . Signs and symptoms of acute lymphocytic leukemia may include: Bleeding from the gums. Symptoms of low red blood cell count (anemia), such as fatigue, pale skin, and shortness of breath. In some cases, a. Acute promyelocytic leukemia (APL) is an aggressive type of acute myeloid leukemia (AML). ˌā-lü-ˈkē-mē-ə. Note. The best survival is in patients under age 20, with a five-year survival rate of 68%. The LLS recommends a diet for people who have leukemia should include: a variety of vegetables and legumes, which should make up around 50% of most meals. AML is the most common type of acute leukemia. According to the National Cancer Institute, about 30 percent of people diagnosed with AML survive 5 years or longer. Bone marrow biopsy. Doctors base leukemia staging on the amount of cancerous white blood cells in the body. Asparaginase Erwinia Chrysanthemi (Recombinant)-rywn. It is more common in children than in adults. CML is a clonal bone marrow stem cell disorder in which a proliferation of. A sarcoma is a type of cancer that starts in tissues like bone or muscle. When ALL spreads to the chest, shortness of breath, and a cough may occur. Those white blood cells crowd out the red blood cells and platelets. Neutrophils may increase in response to a number of conditions or disorders, including. Synonyms. Anatomy of the bone. The white blood cell differential takes a closer look at your white blood cells and the percentage they make up in your blood. There are many signs and symptoms of leukemia. Other symptoms can include: bone pain. But there are nuances. What does PMH stand for in Medical? Get the top PMH abbreviation related to Medical. Loss of appetite. Leukemia is a malignant condition involving the excess production of immature or abnormal leukocytes, which eventually suppresses the production of normal blood cells and results in symptoms related to cytopenias. By contrast, ALL increases the production of lymphocytes. Acute lymphocytic leukemia (ALL) is a cancer of the blood and bone marrow. Generally, it comprises 2% of mature lymphocyte leukemias. Summary. Symptoms. About 8 out of 10 cases of ALL in children are B-cell ALLs. A decreased number of red blood cells (anemia) can lead to pallor and fatigue, while a decreased number of functional white blood cells (neutropenia) predispose affected individuals to infections. Origin: Luke from the Bible, a physician who was a disciple of St. Acute lymphocytic leukemia (ALL), on the other hand, does not usually form tumors. AML affects myeloid cells, which are precursor cells that form into specific blood cells. Leukemia is a group of blood cancers that usually begin in the bone marrow and result in high numbers of abnormal blood cells. Deep secret or grief eating away at the self. An increase in the TLC count is known as leukocytosis, and it is a condition in which the body produces more WBCs. Synonyms. Your claim status tells you where your claim is in the review process. Wang says. sore, swollen joints, particularly in the ankles and knees. Medical PMH abbreviation meaning defined here. Rudolf Virchow, a German politician whose wide-ranging interests led him to significant discoveries in cell. Symptoms. Karloff. Fatigue. Night sweats. Candida: Feeling very scattered. The samples are usually taken from the back of the pelvic (hip) bone, but sometimes other bones are. Leukemia Definitions and Meaning in English. These can include: Weight loss. Rapidly enlarging lymph nodes. If ALL spreads to the central nervous system, symptoms such as headaches, blurry vision, dizziness, and sometimes seizures may occur. Chronic myelogenous leukemia, also called CML, is an uncommon type of cancer of the bone marrow. Benzene dissolves only slightly in water and will float on top of water. Types of blood cancer vary based on the cells they affect as well as their incidence, method of diagnosis, and their prognosis. Canker Sores: Festering words held back by the lips. 6 Cells multiply by dividing into two cells, making a new copy of the. If your spleen is too big you might feel a fullness in your belly. Leukemia is a type of cancer that affects the blood cells and bone marrow, a soft spongy tissue inside the bones where blood cells are made. Both AML and ALL are acute types of leukemia. ALL is the most common type of cancer in children. Only the context indicates. Blood tests are done to help watch your body’s response to treatment. ALL is the most common type of cancer and leukemia in children in the United States. Leukemia is a blood cancer that affects the bone marrow and blood cells. Your bone marrow makes the cells which will develop into white blood cells, red blood cells, and platelets. The bone marrow is where new blood cells are made. This was shortened to Luke in English. In general, treatment falls into two phases: Remission induction therapy. Among the many different types of leukemia, some are less common than others. Knowing the type of disease you have is key to choosing the right. In its early stages, the symptoms of AML may resemble the flu and you may have a fever and fatigue. Acute leukemia is life-threatening and requires immediate initiation of therapy. FS26 Acute Promyelocytic Leukemia Facts I page 1 Revised September 2015 Acute Promyelocytic Leukemia Facts No. In CLL, the leukemia cells often build up slowly. poor appetite and weight loss. If ALL spreads to the central nervous system,. Men. Infections. In contrast, leukostasis (also called symptomatic hyperleukocytosis) is a medical emergency most commonly seen in patients with acute myeloid leukemia or chronic myeloid leukemia in blast crisis. chronic fever. SEER is an authoritative source for cancer statistics in the United States. Blast (blast crisis) CML :Blast CML can be life-threatening. In the latest Sidemen Sunday video, Who wants to be a Millionaire 2, Harry did Callux dirt, very dirty 😭Subscribe to the channel for more Sidemen clipsPh-Positive Acute Lymphoblastic Leukemia Until recently, Ph-positive ALL was very aggressive and difficult to treat. Shortness of breath. Risk factors for AML include: Advanced age. leucaemia. Male sex. These are not just symptoms of AML. These include. 14 ), in the bone marrow. 1 million. Updated October 2022 2 Any of the anxiety states Dysthymic disorder (or depressive neurosis) Organic residuals of frostbite Post-traumatic osteoarthritisChronic lymphocytic leukaemia is a rare type of cancer that affects the blood and bone marrow. It’s the most common form of leukemia in adults. Benzene evaporates into the air very quickly. Common leukemia signs and symptoms include: Fever or chills. These include: recurring infections. . People with leukemia may develop rashes or bruises with no apparent cause, but these rashes may occur for several reasons and have many different appearances. The spleen is an oval-shaped organ on the left side of the upper abdomen. People are often diagnosed with leukemia when their doctor finds abnormal blood counts during a routine physical exam. There is an overproduction of monocytes that the body does not need in the periphery. Leukemia is a type of cancer that affects the blood cells, which begins in your bone marrow or other blood-forming tissue. These leukaemia cells behave differently from healthy blood cells. It's called myelogenous (my-uh-LOHJ-uh-nus) leukemia because it affects a group of white blood cells called the myeloid. A headache. Fatigue. ( lū-kē'mē-ă ), Progressive proliferation of abnormal leukocytes found in hemopoietic tissues, other organs, and usually in the blood in increased numbers. What does it mean to dream of Leukemia if you are a student? indicates a need to get away from cares and responsibilities. Night sweats. Down syndrome (DS; constitutional trisomy 21, OMIM #190685) is the most common chromosomal abnormality among live-born infants. Bruising and bleeding easily. leukemia. These leukemias start in early forms of white blood cells called lymphocytes. Acute monocytic leukemia (AMoL) is a subtype of acute myeloid leukemia (AML). Complete molecular. He hung out with Cody during that time and at the end of "Cody's New Friend!", he was later cured by God as it was revealed that he would later move to Vermont since he. IG (immature granulocytes) above 1% may indicate infections or chronic inflammation. Malignant transformation usually occurs at the pluripotent stem cell level, although it sometimes involves a committed stem cell. Drugs Approved for Acute Lymphoblastic Leukemia (ALL) Arranon (Nelarabine) Asparaginase Erwinia Chrysanthemi. These items can't be displayed right now. When one of these cells changes and becomes a leukemia cell, it no longer matures the way it should. 4,500–11,000. The hallmark of ALL is chromosomal abnormalities and genetic alterations involved in differentiation and proliferation of lymphoid precursor cells. Acute leukemia is the most common cancer in children. They are characterized by an accumulation of early haemopoietic cells, known as blast cells (see Fig. This cancer occurs primarily in older individuals, with a median age of diagnosis. Most people with CML have a gene mutation (change) called the. 5,000–10,000. These can be further classified into sub-types. cancer of the blood. What is Luke short for? : r/AntiJokes. spiritual meaning of leukemia. This type of cancer usually gets worse quickly if it is not treated. The Wiki on the Web. They are usually white blood cells. Luke-emia, presence of Luke in blood. Leukemia True Meaning, Right Interpretation Of Dreams. When. Cells in nearly any part of the body can become cancer and can spread to other areas of the body. Research has also noted several. Types. Contents Overview Symptoms and Causes Diagnosis. "Acute" means that the leukemia usually gets worse quickly if it's not treated. Both AML and ALL are acute types of leukemia. If you have anaemia, you might: look pale. Infants from 6 months to 1 year. Risk factors for AML include: Advanced age. The purpose of the first phase of treatment is to kill the leukemia cells in your blood and bone marrow. AML causes the body to produce too many myeloblasts, platelets, and red blood cells. Lots of frustration and anger. Acute lymphocytic leukemia (ALL) is a malignancy of B or T lymphoblasts characterized by uncontrolled proliferation of abnormal, immature lymphocytes and their progenitors, which ultimately leads to the replacement of bone marrow elements and other lymphoid organs resulting in a typical disease pattern characteristic of acute. • Involves laboratory medicine, clinical hematology laboratory. For people 20 and older, the five-year survival rate is 26%. Acute Lymphocytic Leukemia (ALL) in Adults. See more5 min read What Is Leukemia? Leukemia is a blood cancer caused by a rise in the number of white blood cells in your body.