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HSS 3305 Lecture #11 Exam Latest Update
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HSS 3305 Lecture #11 ExamLatest Update
Blood transports substances to tissues via the _____ system - Answer circulatory
Role of albumin in plasma - Answer maintains osmotic integrity
Volume of blood in body - Answer 5-6 L
Almost half of blood consists of... - Answer cellular elements suspended in plasma
Stem cells - Answer precursor cells in bone marrow that differentiate to form red cells,
white cells, and platelets
Cellular elements of human blood - Answer red blood cells
leukocytes
platelets
Primary function of RBCs - Answer transport of oxygen and removal of CO2
Most numerous cells in blood - Answer RBCs
RBC lifespan - Answer 120 days/4 months
Erythroblast - Answer immature red blood cell
Hemoglobin - Answer oxygen carrying protein formed by the developing red cell
RBCs are large bags of... - Answer hemoglobin
Leukocyte function - Answer immunity
Where are lymphocytes produced? - Answer bone marrow
found in lymph nodes & spleen
Types of leukocytes (4) - Answer neutrophils
monocytes
eosinophils/basophils
lymphocytes
Most numerous leukocyte in adults - Answer neutrophil
, Neutrophils function - Answer actively phagocytic
predominant in inflammatory reactions
first line of defence
Monocyte function - Answer increased in chronic infections
infection/tissue repair
transition to macrophages
Eosinophils/basophils function - Answer increased in allergic reactions and
animal-parasite infections
low quantity in blood
Lymphocytes function - Answer viral infections (cell mediated + humeral reactions)
Most numerous leukocyte in children - Answer lymphocytes
Where are lymphocytes located? - Answer LN, spleen, lymphoid tissues
Platelet function - Answer blood coagulation
Hematopoiesis - Answer formation and development of blood cells
______ replenishes blood cells - Answer bone marrow
Substances necessary for hematopoiesis - Answer protein
folic acid
vitamin B12
iron
Proerythroblasts in the bone marrow mature into... - Answer reticulocytes
High reticulocyte count indicates... - Answer body is creating a lot of RBCs
Red blood cell production is regulated by... - Answer oxygen content of arterial blood,
erythropoietin
White cell production is regulated by... - Answer interleukin levels/response to infection
RBCs derive energy from.. - Answer enzymatic breakdown of glucose (anaerobic
glycolysis)
Major component of RBCs - Answer hemoglobin (96%)
Hemoglobin structure - Answer tetramer
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