{"id":42991,"date":"2022-10-17T12:32:04","date_gmt":"2022-10-17T07:02:04","guid":{"rendered":"https:\/\/ischoolconnect.com\/blog\/?p=42991"},"modified":"2025-06-02T16:01:47","modified_gmt":"2025-06-02T10:31:47","slug":"study-of-blood-definition-and-functions","status":"publish","type":"post","link":"https:\/\/ischoolconnect.com\/blog\/study-of-blood-definition-and-functions\/","title":{"rendered":"Study of blood | definition, and functions"},"content":{"rendered":"\r\n<p><span style=\"font-weight: 400;\">The <\/span><b>study of blood<\/b><span style=\"font-weight: 400;\">, also known as hematology, is a vital branch of medical science that focuses on understanding blood composition, functions, and disorders. This field plays a crucial role in diagnosing and treating diseases such as anemia, leukemia, and clotting disorders.<\/span><\/p>\r\n<h2 id=\"what-is-the-study-of-blood\"><b>What is the Study of Blood?<\/b><\/h2>\r\n<p><span style=\"font-weight: 400;\">The <\/span><b>study of blood<\/b><span style=\"font-weight: 400;\"> is known as <\/span><b>hematology<\/b><span style=\"font-weight: 400;\">. It involves the examination of blood, blood-forming organs, and blood-related disorders. Hematology covers the analysis of various blood components such as red and white blood cells, platelets, and bone marrow cells, as well as the diagnosis and treatment of related conditions.<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">Medical professionals specializing in this field include <\/span><b>hematologists<\/b><span style=\"font-weight: 400;\"> and <\/span><b>hematopathologists<\/b><span style=\"font-weight: 400;\">. They are highly trained to diagnose and manage diseases related to the blood and its components. Hematological tests are commonly used to detect conditions such as <\/span><b>anemia<\/b><span style=\"font-weight: 400;\">, <\/span><b>infections<\/b><span style=\"font-weight: 400;\">, <\/span><b>hemophilia<\/b><span style=\"font-weight: 400;\">, <\/span><b>blood clotting disorders<\/b><span style=\"font-weight: 400;\">, and <\/span><b>leukemia<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">Hematologists also focus on the <\/span><b>lymphatic system<\/b><span style=\"font-weight: 400;\"> and <\/span><b>bone marrow<\/b><span style=\"font-weight: 400;\">, which play critical roles in blood cell production and immune function. They often assess and treat disorders involving the <\/span><b>lymph nodes<\/b><span style=\"font-weight: 400;\">, <\/span><b>spleen<\/b><span style=\"font-weight: 400;\">, <\/span><b>thymus<\/b><span style=\"font-weight: 400;\">, and <\/span><b>lymphoid tissues<\/b><span style=\"font-weight: 400;\">, all of which are essential for nourishing and supporting blood cells.<\/span><\/p>\r\n<h2 id=\"anatomy-and-functions-of-blood\"><b>Anatomy and Functions of Blood<\/b><\/h2>\r\n<p><span style=\"font-weight: 400;\">Blood is a specialized bodily fluid that performs vital tasks essential to life. It circulates throughout the body, delivering nutrients and oxygen to cells while removing waste products. Composed of several components, blood plays diverse roles in maintaining homeostasis, immunity, and overall health.<\/span><\/p>\r\n<h2 id=\"anatomy-of-blood\"><b>Anatomy of Blood<\/b><\/h2>\r\n<p><span style=\"font-weight: 400;\">Blood consists of four major components:<\/span><\/p>\r\n<h3 id=\"plasma\"><b>Plasma<\/b><b><br \/><br \/><\/b><\/h3>\r\n<ul>\r\n<li><b>Volume:<\/b><span style=\"font-weight: 400;\"> 55% of total blood volume<\/span><\/li>\r\n<li><span style=\"font-weight: 400;\">A yellowish fluid made up of 92% water, 7% essential proteins, and 1% dissolved substances (minerals, carbohydrates, lipids, hormones, and vitamins).<\/span><\/li>\r\n<li><span style=\"font-weight: 400;\">Acts as a transport medium for nutrients, hormones, enzymes, and waste products.<\/span><span style=\"font-weight: 400;\"><br \/><\/span><\/li>\r\n<\/ul>\r\n<h3 id=\"red-blood-cells-rbcs-or-erythrocytes\"><b>Red Blood Cells (RBCs or Erythrocytes)<\/b><b><br \/><br \/><\/b><\/h3>\r\n<ul>\r\n<li><b>Volume:<\/b><span style=\"font-weight: 400;\"> 45% of total blood volume<\/span><span style=\"font-weight: 400;\"><br \/><\/span><\/li>\r\n<li><span style=\"font-weight: 400;\">Disc-shaped cells are produced in the bone marrow, rich in hemoglobin.<\/span><span style=\"font-weight: 400;\"><br \/><\/span><\/li>\r\n<li><span style=\"font-weight: 400;\">Transport oxygen from the lungs to body tissues and carry carbon dioxide back to the lungs for exhalation.<\/span><span style=\"font-weight: 400;\"><br \/><b style=\"font-size: 1.125rem;\"><\/b><\/span><b style=\"font-size: 1.125rem;\"><\/b><\/li>\r\n<\/ul>\r\n<p><span style=\"font-weight: 400;\"><b style=\"font-size: 1.125rem;\">White Blood Cells (WBCs or Leukocytes)<\/b><\/span><b><\/b><\/p>\r\n<ul>\r\n<li><b>Volume:<\/b><span style=\"font-weight: 400;\"> &lt;1% of blood volume<\/span><span style=\"font-weight: 400;\"><br \/><\/span><\/li>\r\n<li><span style=\"font-weight: 400;\">Various types of immune cells are produced in the bone marrow.<\/span><span style=\"font-weight: 400;\"><br \/><\/span><\/li>\r\n<li><span style=\"font-weight: 400;\">Defend the body against infections, foreign invaders, and abnormal cells.<\/span><span style=\"font-weight: 400;\"><br \/><br \/><\/span><\/li>\r\n<\/ul>\r\n<h3 id=\"platelets-thrombocytes\"><b>Platelets (Thrombocytes)<\/b><b><br \/><br \/><\/b><\/h3>\r\n<ul>\r\n<li><b>Volume:<\/b><span style=\"font-weight: 400;\"> &lt;1% of blood volume (along with WBCs)<\/span><span style=\"font-weight: 400;\"><br \/><\/span><\/li>\r\n<li><span style=\"font-weight: 400;\">Small, colorless cell fragments are produced in the bone marrow.<\/span><span style=\"font-weight: 400;\"><br \/><\/span><\/li>\r\n<li><span style=\"font-weight: 400;\">Aid in blood clotting and wound healing by forming plugs in damaged vessels.<\/span><\/li>\r\n<\/ul>\r\n<h2 id=\"functions-of-blood\"><b>Functions of Blood<\/b><\/h2>\r\n<p><span style=\"font-weight: 400;\">Blood performs several vital functions in the human body:<\/span><\/p>\r\n<h3 id=\"transportation\"><b> Transportation<\/b><\/h3>\r\n<ul>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Oxygen Delivery:<\/b><span style=\"font-weight: 400;\"> RBCs transport oxygen from the lungs to tissues.<\/span><span style=\"font-weight: 400;\"><br \/><br \/><\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Nutrient Transport:<\/b><span style=\"font-weight: 400;\"> Delivers nutrients like glucose, amino acids, and lipids to cells.<\/span><span style=\"font-weight: 400;\"><br \/><br \/><\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Waste Removal:<\/b><span style=\"font-weight: 400;\"> Transports carbon dioxide to the lungs and metabolic waste to the kidneys.<\/span><span style=\"font-weight: 400;\"><br \/><br \/><\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Toxin Removal:<\/b><span style=\"font-weight: 400;\"> The liver detoxifies harmful substances from the blood for excretion.<\/span><\/li>\r\n<\/ul>\r\n<h3 id=\"regulation\"><b> Regulation<\/b><\/h3>\r\n<ul>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Temperature Control:<\/b><span style=\"font-weight: 400;\"> Blood distributes heat and regulates body temperature through heat exchange at the skin\u2019s surface.<\/span><span style=\"font-weight: 400;\"><br \/><br \/><\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>pH Balance:<\/b><span style=\"font-weight: 400;\"> Maintains a stable blood pH (around 7.4) using buffer systems.<\/span><span style=\"font-weight: 400;\"><br \/><br \/><\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Fluid and Electrolyte Balance:<\/b><span style=\"font-weight: 400;\"> Regulates the balance of water and electrolytes such as sodium, potassium, calcium, and chloride.<\/span><\/li>\r\n<\/ul>\r\n<ol start=\"3\">\r\n<li><b> Protection<\/b><\/li>\r\n<\/ol>\r\n<ul>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Immunity:<\/b><span style=\"font-weight: 400;\"> WBCs recognize and fight pathogens such as bacteria, viruses, and parasites.<\/span><span style=\"font-weight: 400;\"><br \/><br \/><\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Clotting:<\/b><span style=\"font-weight: 400;\"> Platelets and plasma proteins form clots to prevent excessive bleeding from injuries.<\/span><span style=\"font-weight: 400;\"><br \/><b style=\"color: #666666; font-size: 1.25rem;\"><\/b><\/span><\/li>\r\n<\/ul>\r\n<p><span style=\"font-weight: 400;\"><b style=\"color: #666666; font-size: 1.25rem;\">Areas of Study in Hematology<\/b><\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">Hematology focuses on the <\/span><b>study of blood<\/b><span style=\"font-weight: 400;\"> and its related disorders. It is broadly divided into four main areas:<\/span><\/p>\r\n<ol>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\">\r\n<h3 id=\"hemoglobinopathy\"><b>Hemoglobinopathy<\/b><b><br \/><\/b><\/h3>\r\n<span style=\"font-weight: 400;\">This involves the study of abnormalities in the globin chains of hemoglobin. Common conditions include thalassemia (a disorder of red blood cell production) and sickle cell anemia.<\/span><span style=\"font-weight: 400;\"><br \/><br \/><\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\">\r\n<h3 id=\"hematologic-malignancies\"><b>Hematologic Malignancies<\/b><b><br \/><\/b><\/h3>\r\n<span style=\"font-weight: 400;\"> These are cancers of the blood, bone marrow, and lymph nodes, such as leukemia, lymphoma, and myeloma. Diagnosis and treatment of these cancers are a key focus of hematologists.<\/span><span style=\"font-weight: 400;\"><br \/><br \/><\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\">\r\n<h3 id=\"anemia\"><b>Anemia<\/b><\/h3>\r\n<span style=\"font-weight: 400;\">Anemia refers to a deficiency in red blood cells or hemoglobin, leading to reduced oxygen transport in the body.<\/span><span style=\"font-weight: 400;\"><br \/><br \/><\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\">\r\n<h3 id=\"coagulopathy\"><b>Coagulopathy<\/b><b><br \/><\/b><\/h3>\r\n<span style=\"font-weight: 400;\">This area deals with disorders affecting blood clotting, including conditions like arterial thromboembolism, deep vein thrombosis, and other bleeding or clotting abnormalities.<\/span><\/li>\r\n<\/ol>\r\n<h2 id=\"top-universities-abroad-for-haematology-courses\"><b>Top Universities Abroad for Haematology Courses<\/b><\/h2>\r\n<p><span style=\"font-weight: 400;\">Many top-ranked universities across the UK, Ireland, Australia, Malaysia, and Europe offer specialized Haematology courses. Below is a simplified list of some of the best universities abroad offering Haematology programs.<\/span><\/p>\r\n<ul>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>University of Cambridge<\/b><span style=\"font-weight: 400;\"> \u2013 UK<\/span><span style=\"font-weight: 400;\"><br \/><br \/><\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>University College London (UCL)<\/b><span style=\"font-weight: 400;\"> \u2013 UK<\/span><span style=\"font-weight: 400;\"><br \/><br \/><\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>The University of Sydney<\/b><span style=\"font-weight: 400;\"> \u2013 Australia<\/span><span style=\"font-weight: 400;\"><br \/><br \/><\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Trinity College Dublin<\/b><span style=\"font-weight: 400;\"> \u2013 Ireland<\/span><span style=\"font-weight: 400;\"><br \/><br \/><\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>University of Liverpool<\/b><span style=\"font-weight: 400;\"> \u2013 UK<\/span><span style=\"font-weight: 400;\"><br \/><br \/><\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>University of Galway<\/b><span style=\"font-weight: 400;\"> \u2013 Ireland<\/span><span style=\"font-weight: 400;\"><br \/><br \/><\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Sapienza University of Rome<\/b><span style=\"font-weight: 400;\"> \u2013 Italy<\/span><span style=\"font-weight: 400;\"><br \/><br \/><\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Universiti Putra Malaysia (UPM)<\/b><span style=\"font-weight: 400;\"> \u2013 Malaysia<\/span><span style=\"font-weight: 400;\"><br \/><br \/><\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>University of Greenwich<\/b><span style=\"font-weight: 400;\"> \u2013 UK<\/span><span style=\"font-weight: 400;\"><br \/><br \/><\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Kingston University<\/b><span style=\"font-weight: 400;\"> \u2013 UK<\/span><span style=\"font-weight: 400;\"><br \/><br \/><\/span><\/li>\r\n<\/ul>\r\n<h2 id=\"subdisciplines-of-hematology\"><b>Subdisciplines of Hematology<\/b><\/h2>\r\n<p><span style=\"font-weight: 400;\">Hematology is the <\/span><b>study of blood<\/b><span style=\"font-weight: 400;\"> and its disorders. It includes several important subdisciplines:<\/span><\/p>\r\n<h3 id=\"hematology-oncology\"><b> Hematology Oncology<\/b><\/h3>\r\n<p><span style=\"font-weight: 400;\">Hematology is closely linked with oncology, the study of cancer. Hematologists often work with oncologists to diagnose and treat blood and bone marrow cancers such as leukemia and lymphoma in both adults and children.<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">Hematologists are usually board-certified doctors who have completed additional training in hematology. Their main role is to provide direct patient care, focusing on diagnosing and managing blood diseases, especially cancers.<\/span><\/p>\r\n<h3 id=\"hematopathology\"><b> Hematopathology<\/b><\/h3>\r\n<p><span style=\"font-weight: 400;\">Hematopathologists are specialists trained in both anatomical and clinical pathology, with extra training in hematopathology. They study diseases of the blood, bone marrow, and organs that depend on blood cells\u2014such as lymph nodes, spleen, and thymus.<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">They diagnose disorders of blood-forming tissues and lymphocyte-rich organs by examining blood and tissue samples under the microscope in the laboratory.<\/span><\/p>\r\n<h3 id=\"hematology-tests\"><b> Hematology Tests<\/b><\/h3>\r\n<p><span style=\"font-weight: 400;\">Several tests are commonly used to diagnose and monitor blood disorders:<\/span><\/p>\r\n<h3 id=\"complete-blood-count-cbc\"><b>Complete Blood Count (CBC)<\/b><\/h3>\r\n<p><span style=\"font-weight: 400;\">The CBC is one of the most common blood tests. It helps detect anemia, infections, blood cancers, clotting problems, and immune disorders. The test measures:<\/span><\/p>\r\n<ul>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">White Blood Cell count (WBC)<\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Red Blood Cell count (RBC)<\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Platelet count<\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Hematocrit (HCT) \u2014 the volume of red blood cells<\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Hemoglobin (HB) \u2014 the oxygen-carrying protein in RBCs<\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Differential White Blood Cell count<\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Red Blood Cell indices (various measurements)<\/span><\/li>\r\n<\/ul>\r\n<p><b>Uses:<\/b><span style=\"font-weight: 400;\"> Diagnosing anemia, certain cancers, infections, and monitoring blood loss or inflammation.<\/span><\/p>\r\n<h3 id=\"platelet-count\"><b>Platelet Count<\/b><\/h3>\r\n<p><span style=\"font-weight: 400;\">Often part of the CBC, it helps diagnose and monitor bleeding or clotting disorders.<\/span><\/p>\r\n<p><b>Coagulation Tests<\/b><\/p>\r\n<ul>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Prothrombin Time (PT)<\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Partial Thromboplastin Time (PTT)<\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">International Normalized Ratio (INR)<\/span><\/li>\r\n<\/ul>\r\n<p><b>Uses:<\/b><span style=\"font-weight: 400;\"> Assess bleeding and clotting problems and monitor blood-thinning treatments.<\/span><\/p>\r\n<h3 id=\"bone-marrow-biopsy\"><b>Bone Marrow Biopsy<\/b><\/h3>\r\n<p><span style=\"font-weight: 400;\">A test performed by hematologists to extract and examine bone marrow cells for diseases. It is not routine but important in certain diagnoses.<\/span><\/p>\r\n<p><b>Other Tests<\/b><\/p>\r\n<ul>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Blood chemistry tests<\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Blood enzyme tests<\/span><\/li>\r\n<\/ul>\r\n<h2 id=\"common-hematological-disorders\"><b>Common Hematological Disorders<\/b><\/h2>\r\n<h3 id=\"anemias\"><b> Anemias<\/b><\/h3>\r\n<p><span style=\"font-weight: 400;\">This condition is characterized by a decrease in red blood cells or hemoglobin, leading to reduced oxygen delivery to tissues.<\/span><span style=\"font-weight: 400;\"><br \/><\/span><b>Symptoms:<\/b><span style=\"font-weight: 400;\"> Fatigue, weakness, pale skin, shortness of breath, dizziness, headache, cold extremities.<\/span><span style=\"font-weight: 400;\"><br \/><\/span><span style=\"font-weight: 400;\"><br \/><\/span> <b>Types:<\/b><\/p>\r\n<ul>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Iron Deficiency Anemia:<\/b><span style=\"font-weight: 400;\"> Caused by low iron intake or blood loss; most common type.<\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Vitamin B12 Deficiency Anemia:<\/b><span style=\"font-weight: 400;\"> Due to a lack of vitamin B12, essential for red blood cell production.<\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Hemolytic Anemia:<\/b><span style=\"font-weight: 400;\"> Premature destruction of red blood cells from genetic, autoimmune, or infectious causes.<\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Aplastic Anemia:<\/b><span style=\"font-weight: 400;\"> Bone marrow fails to produce sufficient blood cells.<\/span><span style=\"font-weight: 400;\"><br \/><br \/><\/span><\/li>\r\n<\/ul>\r\n<h3 id=\"leukemias\"><b> Leukemias<\/b><\/h3>\r\n<p><span style=\"font-weight: 400;\">Cancers of white blood cells cause the uncontrolled growth of abnormal cells.<\/span><span style=\"font-weight: 400;\"><br \/><\/span><b>Symptoms:<\/b><span style=\"font-weight: 400;\"> Fatigue, fever, infections, easy bruising\/bleeding, swollen lymph nodes, weight loss, bone pain.<\/span><span style=\"font-weight: 400;\"><br \/><\/span><\/p>\r\n<h4 id=\"types\"><b>Types:<\/b><\/h4>\r\n<ul>\r\n<li><b>Acute Leukemias:<\/b><span style=\"font-weight: 400;\"> Rapid onset requiring urgent treatment.<\/span><\/li>\r\n<li><span style=\"font-weight: 400;\">Acute Lymphoblastic Leukemia (ALL): Affects lymphocytes.<\/span><\/li>\r\n<li><span style=\"font-weight: 400;\">Acute Myeloid Leukemia (AML): Affects myeloid precursor cells.<\/span><span style=\"font-weight: 400;\"><br \/><\/span><\/li>\r\n<li><b>Chronic Leukemias:<\/b><span style=\"font-weight: 400;\"> Slower progression, milder symptoms initially.<\/span><\/li>\r\n<li><span style=\"font-weight: 400;\">Chronic Lymphocytic Leukemia (CLL): Affects lymphocytes.<\/span><\/li>\r\n<li><span style=\"font-weight: 400;\">Chronic Myeloid Leukemia (CML): Affects myeloid progenitor cells; characterized by leukocytosis with immature granulocytes due to the Philadelphia chromosome mutation.<\/span><span style=\"font-weight: 400;\"><br \/><b style=\"font-size: 1.125rem;\"><\/b><\/span><\/li>\r\n<\/ul>\r\n<p><span style=\"font-weight: 400;\"><b style=\"font-size: 1.125rem;\">Lymphomas<\/b><\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">Cancers of the lymphatic system (lymph nodes, spleen, thymus).<\/span><span style=\"font-weight: 400;\"><br \/><\/span><b>Symptoms:<\/b><span style=\"font-weight: 400;\"> Swollen lymph nodes, fever, night sweats, fatigue, weight loss, itching, chest pain, or cough if lungs are involved.<\/span><span style=\"font-weight: 400;\"><br \/><\/span><\/p>\r\n<h4 id=\"types-2\"><b>Types:<\/b><\/h4>\r\n<ul>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Hodgkin\u2019s Lymphoma:<\/b><span style=\"font-weight: 400;\"> Identified by Reed-Sternberg cells in lymph node biopsies.<\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Non-Hodgkin\u2019s Lymphoma:<\/b><span style=\"font-weight: 400;\"> A diverse group with various subtypes.<\/span><span style=\"font-weight: 400;\"><br \/><br \/><\/span><\/li>\r\n<\/ul>\r\n<h2 id=\"bleeding-disorders\"><b> Bleeding Disorders<\/b><\/h2>\r\n<p><span style=\"font-weight: 400;\">Conditions causing excessive or prolonged bleeding due to clotting factor or platelet problems.<\/span><span style=\"font-weight: 400;\"><br \/><\/span><b>Symptoms:<\/b><span style=\"font-weight: 400;\"> Easy bruising, frequent nosebleeds, heavy bleeding after injury or surgery, heavy menstrual bleeding.<\/span><span style=\"font-weight: 400;\"><br \/><\/span><b>Types:<\/b><\/p>\r\n<ul>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Hemophilia:<\/b><span style=\"font-weight: 400;\"> Inherited deficiency of clotting factors VIII or IX.<\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Von Willebrand Disease:<\/b><span style=\"font-weight: 400;\"> Most common inherited bleeding disorder affecting platelet adhesion.<\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Thrombocytopenia:<\/b><span style=\"font-weight: 400;\"> Low platelet count leading to easy bleeding and bruising.<\/span><\/li>\r\n<\/ul>\r\n<h2 id=\"key-takeaways\"><b>Key Takeaways<\/b><\/h2>\r\n<ul>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The <\/span><b>study of blood<\/b><span style=\"font-weight: 400;\"> focuses on diagnosing and treating diseases affecting blood components like cells, hemoglobin, proteins, bone marrow, and platelets.<\/span><span style=\"font-weight: 400;\"><br \/><\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Blood is made up of red blood cells (about 45%), white blood cells, platelets, and plasma (55%), with red blood cells transporting oxygen to tissues.<\/span><span style=\"font-weight: 400;\"><br \/><\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The complete blood count (CBC) is a key test in the <\/span><b>study of blood<\/b><span style=\"font-weight: 400;\">, used to detect anemia, clotting problems, blood cancers, immune disorders, and infections.<\/span><\/li>\r\n<\/ul>\r\n<p><span style=\"font-weight: 400;\">Did you find this blog informative? If so, please share your thoughts in the comments section below. <\/span><a href=\"https:\/\/ischoolconnect.com\/contact-us\/\"><span style=\"font-weight: 400;\">Click here<\/span><\/a><span style=\"font-weight: 400;\"> to contact us for more information on the study of blood. We would be happy to assist you with your queries.<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">Liked this blog? Read next: <\/span><a href=\"https:\/\/ischoolconnect.com\/blog\/what-exactly-is-ophthalmology-study-of-eye\/\"><span style=\"font-weight: 400;\">What exactly is ophthalmology? \u2013 Study of eye<\/span><\/a><\/p>\r\n<h2 id=\"faqs\"><b>FAQs<\/b><\/h2>\r\n<p><b>Question 1. What is the study of blood called?<\/b><b><br \/><\/b><b>Answer.<\/b><span style=\"font-weight: 400;\"> The study of blood is called <\/span><b>hematology<\/b><span style=\"font-weight: 400;\">. It involves understanding the composition, functions, and diseases related to blood.<\/span><\/p>\r\n<p><b>Question 2. Which are the top universities offering hematology courses abroad?<\/b><b><br \/><\/b><b>Answer.<\/b><span style=\"font-weight: 400;\"> Leading UK universities offering hematology or related courses include:<\/span><\/p>\r\n<ul>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">University of Cambridge\u00a0<\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">University College London<\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">University of Liverpool<\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">University of Chester<\/span><\/li>\r\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">University of Westminster<\/span><\/li>\r\n<\/ul>\r\n<p><b>Question 3. How many cells are in the blood?<\/b><\/p>\r\n<p><b>Answer.<\/b><span style=\"font-weight: 400;\"> Men have between 4.7 and 6.1 million red blood cells per microliter of blood.<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">Women have between 4.2 and 5.4 million red blood cells per microliter of blood.<\/span><\/p>\r\n<p><span style=\"font-weight: 400;\">Children\u2019s blood contains 4.0 to 5.5 million red blood cells per microliter.<\/span><\/p>\r\n<p><b>Question 4. Which blood cell count is the maximum in blood?<\/b><\/p>\r\n<p><b>Answer.<\/b><span style=\"font-weight: 400;\"> Red blood cells comprise most of the blood, accounting for approximately 40-45% of its volume.<\/span><\/p>\r\n<p><b>Question 5. Which is the smallest blood cell?<\/b><\/p>\r\n<p><b>Answer.<\/b><span style=\"font-weight: 400;\"> Blood platelets are the smallest blood cells, measuring roughly 2 to 4 micrometers in diameter.<\/span><\/p>\r\n<p>&nbsp;<\/p>\r\n<p><span style=\"font-weight: 400;\"><br \/><br \/><\/span><\/p>\r\n<p><script type=\"application\/ld+json\">\r\n{\r\n  \"@context\": \"https:\/\/schema.org\",\r\n  \"@type\": \"FAQPage\",\r\n  \"mainEntity\": [{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"How many cells are in the blood?\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"Men have between 4.7 and 6.1 million red blood cells per microliter of blood\r\nWomen have between 4.2 and 5.4 million red blood cells per microliter of blood.\r\nChildren's blood contains 4.0 to 5.5 million red blood cells per microliter.\"\r\n    }\r\n  },{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"Which blood cell count is the maximum in blood?\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"Red blood cells comprise most of the blood, accounting for approximately 40-45% of its volume.\"\r\n    }\r\n  },{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"Which is the smallest blood cell?\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"Blood platelets are the smallest blood cells, measuring roughly 2 to 4 micrometers in diameter.\"\r\n    }\r\n  }]\r\n}\r\n<\/script><\/p>\r\n","protected":false},"excerpt":{"rendered":"<p>The study of blood, also known as hematology, is a vital branch of medical science that focuses on understanding blood composition, functions, and disorders. This field plays a crucial role in diagnosing and treating diseases such as anemia, leukemia, and clotting disorders. What is the Study of Blood? The study of blood is known as [&hellip;]<\/p>\n","protected":false},"author":69,"featured_media":43030,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"no","_lmt_disable":"","footnotes":""},"categories":[1411],"tags":[2498],"class_list":["post-42991","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-academics","tag-study-of-blood"],"better_featured_image":{"id":43030,"alt_text":"Study of blood| definition, and functions","caption":"Study of blood| definition, and functions","description":"Study of blood| definition, and 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