The sensitivity of the muscle spindle is maintained by ________.
A. alpha motor neurons
B. gamma motor neurons
C. a stretch reflex
D. secondary afferent (group II) fibers
E. anulospiral endings
Answer: B
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Bones of the axial skeleton form the ________ axis of the body.
Fill in the blank(s) with the appropriate word(s).
The "female athlete triad" can result in which of the following?
A. stress fractures B. irreversible bone loss C. death D. both A and B E. all of the above
Which characteristic is relevant to the endocrine system but not to the nervous system?
a. Releases chemicals into synaptic clefts. b. Chemical signals operate at short distances. c. Speed of response is very rapid. d. Released chemicals may target cells far away. e. Anatomically a "wired" system.
An inflammation of the vaginal canal caused by fungi, bacteria, or parasites is called
A) endometriosis. B) a UTI. C) peritonitis. D) vaginitis. E) orchitis.