The fastest nerve fibers in the body can conduct impulses up to approximately
The Correct Answer is {"dropdown-group-1":"C"}
A. 60: This is the speed of some moderately fast fibers, but not the maximum.
B. 85: This is fast, but still below the maximum capacity of Type A alpha fibers.
C. 130: Large-diameter, heavily myelinated fibers (Type A) can conduct impulses at speeds ranging from 70 to 120–130 meters per second.
D. 190: This exceeds the biological limit for nerve conduction velocity in humans.
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Correct Answer is B
Explanation
A. hemostasis: This is the general term for the process of stopping bleeding, which includes clot formation, not dissolution.
B. fibrinolysis: Fibrinolysis is the enzymatic breakdown of the fibrin mesh in blood clots, primarily performed by the enzyme plasmin.
C. erythroblastosis: This refers to the abnormal presence of erythroblasts (immature red blood cells) in the blood, usually related to hemolytic disease.
D. diapedesis: This is the process of white blood cells "squeezing" through capillary walls to enter tissues.
Correct Answer is A
Explanation
A. glycerol and fatty acids: While most nutrients go into the blood, large fat molecules (lipids) are absorbed into specialized lymph capillaries called lacteals in the small intestine.
B. glucose and glycerol: Glucose is water-soluble and is absorbed directly into the blood capillaries, not the lymph.
C. amino acids and fatty acids: Amino acids are water-soluble and enter the bloodstream directly.
D. glucose and amino acids: Both of these are absorbed via the hepatic portal system into the blood.
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