10 Questions
What is the main principle constituent of the hemoglobin molecule?
Iron
Which substances are essential for normal formation of DNA and cell division during red blood cell maturation?
Vitamin B12 and folic acid
Which hormone increases erythropoietin secretion?
Catecholamines
What stimulates erythropoiesis?
Hypoxia
What is the role of hepcidin in iron absorption?
Inhibits ferroportin transporter
What is the significance of vitamin B12 and folic acid in erythropoiesis?
They are required for the maturation of red blood cells
What is the main function of regulating the RBC count in the circulation?
To ensure a sufficient number of RBCs for adequate oxygen transport
What is the role of the liver in erythropoiesis?
Storage of iron and vitamin B12
Which organ secretes the majority of erythropoietin hormone?
Kidneys
Why do deficiencies of either folate or B12 produce the same type of anemia?
They both impair the maturation of red blood cells
Test your knowledge on the regulation of erythropoiesis with this quiz, covering topics like negative feedback control, erythropoietin hormone, iron metabolism, and the importance of vitamins in the process. This quiz is based on the teachings of Dr. Manal Said, Assistant Professor of Physiology at Ain Shams University.
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