16 Questions
What happens to older red blood cells as they pass through narrow capillaries?
They may rupture
What happens to the remnants of heme groups from destroyed red blood cells?
Converted to bilirubin
How is bilirubin excreted from the body?
In feces
What causes the condition known as jaundice?
Elevated bilirubin levels in the blood
What is the common cause of jaundice discussed in the text?
Liver disease
Which condition is characterized by a low red blood cell count and hemoglobin content?
Anemia
What is the result of the crystallization of abnormal hemoglobin in sickle cell disease?
Formation of sickle-shaped red blood cells
Which compound is administered as a treatment for sickle cell disease?
Hydroxyurea
What is the cause of inadequate heme production in iron-deficiency anemia?
Insufficient iron intake
What is the characteristic shape of red blood cells in hereditary spherocytosis?
Spherical cells
What is a consequence of red blood cells jamming up and blocking blood flow in sickle cell disease?
Tissue damage and pain from hypoxia
What effect does hydroxyurea treatment have on sickle cell disease?
Inhibits DNA synthesis and alters bone marrow function
Which condition results from failure of the bone marrow to make adequate amounts of hemoglobin?
Aplastic anemia
What causes accelerated red blood cell loss in hemolytic anemias?
Blood loss
Which type of anemia results from insufficient dietary intake of essential nutrients?
Iron-deficiency anemia
What is a common treatment for iron-deficiency anemia?
Iron supplements
Test your knowledge about the lifespan and recycling process of red blood cells in the circulation. Explore the fate of older red blood cells and the recycling of components such as amino acids and iron.
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