A&P 2
Unit 1 Case Study 1: Tell Me About Blood
Tuesday December 16, 2014
A low hematocrit means the percentage of red blood cells is below the lower limits of normal. A person's age, sex, or specific condition (for example, pregnancy or high-altitude living) can also affect the hematocrit, another term for low hematocrit is anemia. Anemia can cause a low hematocrit. Also bleeding, ulcers, trauma, colon cancer, internal bleeding, destruction of red blood cells, sickle cell anemia, enlarged spleen, decreased production of red blood cells, bone marrow suppression, cancer, drugs, nutritional problems, low iron/ B 12, malnutrition, Overly hydrating or polydipsia ("Hematocrit (Blood Test) Causes, Symptoms, Treatment - What does a low hematocrit mean? - eMedicineHealth", 2014).
Lymphocytes develop mostly in in red bone marrow. B lymphocytes develop in red bone marrow, T lymphocytes develop in red bone marrow and then they mature in the thymus. Other formed elements are also developed in red bone marrow.
Erythropoiesis is development of red blood cells, Erythropoiesis is speeded up when oxygen that is being transferred to the kidneys slows down when there isn’t enough sufficient oxygen being carried to the blood.
Each White Blood Cell and its Function:
a) Lymphocyte – major combatant in immune responses
b) Basophil – intensifies the inflammatory reaction, is involved in hypersensitivity reactions
c) Monocyte – phagocytosis and cell debris cleanup
d) Neutrophil – active in phagocytosis
e) Eosinophil – releases enzymes that fight the effects of histamine and phagocytize antigen-antibody complexes
Leukocytes in person infected with a parasitic disease would be higher, because the presence of the disease would trigger the production of leukocyte to fight of infection from the parasite. Lymphocytes such as B and T cell are the White Blood cells that are responsible for the immune of pathogens. These two cell are functions for antigens.