18 Questions
What is the primary function of EPO (erythropoietin) in the body?
Promotes differentiation and maturation of erythrocytes
Which type of stem cell becomes a lymphocyte for immunity and matures in various places?
Lymphoid stem cell
What is the main source of thrombopoietin, which stimulates the development of platelets?
Liver
What is the role of cytokines in hemopoiesis?
Signal local cellular chemicals
In hemopoiesis, which type of stem cell becomes erythrocytes, platelets, granular leukocyte, or monocytes?
Myeloid stem cell
What is the function of colony-stimulating factors in hemopoiesis?
Promote differentiation of myeloblasts
What is the role of erythrocytes in the body?
Carrying oxygen away from the lungs and bringing some carbon dioxide back to the lungs
What happens to red blood cells after living for about 120 days?
They are eaten by macrophages, and their amino acids are recycled to form new red blood cells
What is the function of hemoglobin?
Carrying oxygen and carbon dioxide in the blood
What happens to the percentage of hemoglobin saturation if oxygen decreases?
Erythropoietin (EPO) production increases
What is the fate of iron consumed from food sources?
Less than 20% is absorbed, and it is needed for the production of hemoglobin
What happens to red blood cell production if oxygen levels decrease?
Erythropoietin (EPO) production increases
What is the normal percentage of RBC in the blood?
45%
Which plasma protein is most abundant and transports fatty acids and steroid hormones?
Albumin
What is the characteristic color of blood just after receiving oxygen?
Bright red
What stimulates the production of platelets?
Thrombopoietin
What is the function of fibrinogen in the blood?
Essential for blood clotting
Which stem cell becomes erythrocytes, platelets, granular leukocytes, or monocytes?
Myeloid stem cell
Test your knowledge on the overview and composition of blood, including its components, functions, and regulation within the cardiovascular system. Topics covered include RBC, WBC, platelets, plasma, transportation, defense, and homeostasis.
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