Which of the following is true regarding unmyelinated nerve fibers in the PNS?
A. Satellite cells cluster around each axon to form a pseudo-myelin sheath.
B. A Schwann cells wraps its plasma membrane around each individual fiber as it does with myelinated fibers.
C. An oligodendrocyte cells wraps its plasma membrane around each fiber as it does with myelinated fibers.
D. A Schwann cell folds its plasma membrane around several fibers .
Answer: D
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Where is the saccule located?
A. In the auditory tube B. Lateral to the auditory ossicles C. Within the vestibule D. Within the cochlea E. Within the middle ear
Which is true of sex hormones?
A) Their action on bone growth is stronger in males than in females. B) They inhibit osteoblast activity. C) They have no effect on bone. D) They stimulate ossification of the epiphyseal plates.
Neurons in the skin that are responsible for detecting pain are
A. apolar. B. pseudo-unipolar. C. bipolar. D. multipolar.
Which of the following statements concerning the sense of taste is false?
A. Sensitivity of taste buds for sweet taste is very high. B. Olfaction influences taste. C. Sensitivities for sweet and salty tastes are the lowest. D. Each taste bud is most sensitive to one of the five basic tastes. E. Adaptation for taste is rapid.