And Answers Graded A+.
What is the most abundant class of plasma protein? - Answer Albumin
What is the effect of low plasma albumin? - Answer Osmotic pressure decreases, thus water moves
from the capillaries to the interstitium
What is the life span of an erythrocyte? - Answer 100 to 120 days
Which statement concerning erythrocytes is true? - Answer Erythrocytes have the ability to change
shape to squeeze through microcirculation.
Granulocytes that contain granules of vasoactive amines, such as histamines, are called: - Answer
Basophils
Which of the following are formed elements of the blood that are not cells but are disk-shaped
cytoplasmic fragments essential for blood clotting? - Answer Platelets
Blood cells that differentiate into macrophages are known as: - Answer Monocytes
Without prior exposure to an antigen, which cells are able to destroy some types of tumor cells and
some virus-infected cells? - Answer Natural killer cells
What is the life span of platelets? - Answer 10 days
Fetal hematopoiesis occurs in which structure? - Answer Spleen
What is the consequence of a splenectomy? - Answer the number of defective cells in circulation
increases
, During an infection, why do lymph nodes enlarge and become tender? - Answer B lymphocytes
proliferate
Which blood cells are the chief phagocytes involved in the early inflammation process? - Answer
Neutrophils
Which blood cells are biconcave in shape and have the capacity to be reversibly deformed? - Answer
Erythrocytes
Which hemoglobin is made from oxidized ferric iron and lacks the ability to bind to oxygen? - Answer
Methamoglobin
The absence of parietal cells would prevent the absorption of an essential nutrient necessary to prevent
which type of anemia? - Answer Pernicious anemia
Which nutrients are necessary for the synthesis of DNA and the maturation of erythrocytes? - Answer
vitamin B12 and folate
Which nutrients are necessary for hemoglobin synthesis? - Answer Iron and Vitamin B6
Recycling of iron from erythrocytes is made possible by what? - Answer Transferrin
By which structure are mature erythrocytes removed from bloodstream? - Answer Spleen
Which substance is used to correct the chronic anemia associated with chronic renal failure? - Answer
Erythropoietin
What is the role of thromboxane A in the secretion stage of hemostasis? - Answer Stimulates platelet
aggregation