Which of the following statements concerning the rate of action potential propagation is TRUE?
A. It is faster in small-diameter axons than in large-diameter axons.
B. It is faster for a strong stimulus than for a weak one.
C. It is faster in myelinated axons than in nonmyelinated axons.
D. It is faster in the dendrites than in the axon.
E. It occurs at the same rate in all axons, regardless of their diameter.
C
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The term used to describe fluid collecting in the pericardial cavity that restricts the movement of the heart is known as
A) cardiac tamponade. B) mitral valve prolapse. C) pleural effusion. D) cardiomyopathy. E) pericarditis.
For most swimming animals, drag is proportional to the
A) Square root of the buoyancy. B) Inverse of the mass-specific metabolic rate. C) Reynolds number. D) Velocity squared.
Which of the following does not stimulate insulin secretion?
a. elevated blood amino acid concentration. b. gastrointestinal hormones. c. a fast-food hamburger. d. starvation. e. elevated blood glucose concentration.
True or False? The ability to detect simultaneous stimulation at two points on the skin is called two-point discrimination.
Answer the following statement true (T) or false (F)