blood quiz part 3
Damaged red blood cells are phagocytized by macrophages in the spleen or liver and their components are recycled, EXCEPT for the
heme group (minus the iron atom), which is converted into a green pigment called biliverdin
In adults, red blood cells are made in one place, spend most of their lifespan in another, and most are finally destroyed in yet another place. Which choice lists these locations in chronological order?
bone marrow; blood vessels; spleen
Blood test results for an adult male are returned and the total red blood cell count is 2,500,000 cells per mm3. This person
has an abnormally low total red blood cell count
In which choice are the formed elements arranged in order of increasing size?
platelet, red blood cell, neutrophil
Which blood component is NOT correctly matched with its function?
platelets - phagocytize bacteria
Which leukocyte is NOT correctly matched with its description?
basophil - typical kidney-shaped nucleus, largest white blood cell
Which type of leukocyte is correctly matched with its function?
basophils - release histamine in areas of damaged tissue
As red blood cells get older, they
become more fragile
What would you suspect to find if someone has high blood erythropoietin levels?
blood oxygen deficiency
Which hormone stimulates red blood cell formation?
erythropoietin
Which condition would stimulate erythropoietin secretion?
low blood oxygen level
Which cell is NOT classified as a granulocyte?
lymphocyte
Which is NOT correct about RBC recycling?
the entire heme molecule is eliminated by the liver
The lower the total amount of iron stored in the body,
the higher the absorption of ingested iron in the intestine.
The carrier protein that transports absorbed iron through the blood is
transferrin
