As ________ increases, the two-point threshold decreases.
A. receptor sensation
B. receptor sensitivity
C. receptor number
D. receptor density
Answer: D
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What is the main factor that determines the power of a muscle?
A) the total number of muscle fibers (cells) available for contraction B) the length C) the shape D) the number of neurons innervating it
Which of the following does not characterize the sympathetic nervous system?
a. It promotes responses that prepare the body for strenuous physical activity. b. It has some afferent fibers. c. Most of its postganglionic fibers are adrenergic. d. Its effects may be excitatory or inhibitory. e. Its postganglionic neurons display nicotinic receptors.
A person whose blood type is AB-negative can:
receive any blood type in moderate amounts except that with the Rh antigen. donate to all blood types in moderate amounts. receive types A, B, and AB, but not type O. donate to types A, B, and AB, but not to type O.
What symptom distinguishes a second-degree from a third-degree burn?
A) presence of erythema associated with the third-degree burn B) lack of initial pain associated with the third-degree burn C) presence of significant pain initially with the third-degree burn D) presence of blisters associated with the third-degree burn