25 Questions
What is the main function of erythrocytes?
Contribute to gas transport
What is the normal hemoglobin range for females?
12-16 g/100ml
Which component of hemoglobin is responsible for binding with oxygen?
Heme pigment
What effect would low iron levels have on a patient?
An increase in fatigue
What is the role of erythropoietin (EPO) in the body?
Stimulate red blood cell production
What is the composition of globin in hemoglobin?
Two alpha and two beta chains
What triggers the synthesis of EPO?
Decreased availability of O2
Where is 65% of iron found in the body?
Hemoglobin
What are the symptoms of anemia?
Fatigue, pallor, dyspnea, and chills
What is the life span of RBCs?
100-120 days
What is the cause of secondary polycythemia?
High altitude or increased EPO production
What is the function of vitamin B12 and folic acid in RBC production?
To synthesize DNA for developing RBCs
What is the main function of EPO?
Stimulate red bone marrow
What are the consequences of polycythemia vera?
Excess RBCs and increased blood viscosity
What happens when HIF accumulates in the body?
Triggers synthesis of EPO
What is the potential outcome of an overdose of the hormone erythropoietin?
The blood viscosity increases to levels that may induce heart attacks or strokes.
What is the primary function of vitamin B12 and folic acid in red blood cell production?
Facilitate DNA synthesis for rapidly dividing cells such as developing RBCs.
Which condition is characterized by an abnormal excess of red blood cells and increases blood viscosity?
Polycythemia vera
What is the consequence of secondary polycythemia caused by low oxygen levels or increased EPO production?
Abnormal excess of RBCs and increased blood viscosity.
What is the role of HIF (hypoxia-inducible factor) in response to decreased availability of oxygen?
It accumulates and triggers the synthesis of EPO (erythropoietin).
What is the composition of hemoglobin?
Two alpha and two beta chains
What is the role of spectrin in erythrocytes?
Maintains the biconcave disc shape
What is the function of erythropoietin (EPO)?
Stimulates the production of red blood cells
What triggers the release of erythropoietin (EPO) from the kidneys?
Low blood oxygen levels
What is the primary function of erythrocytes?
Carrying respiratory gases in the blood
Test your knowledge of the functions and composition of blood, including its role in transporting, regulating, and protecting the body. Learn about the different types of blood cells and their functions, as well as the composition and function of hemoglobin.
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