The perineurium
A. surrounds individual axons and their Schwann cells.
B. bundles fascicles into nerves.
C. surrounds nerve cell bodies.
D. bundles axons into fascicles.
E. bundles fascicles into axons.
Answer: D
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GnRH
a. stimulates both FSH and LH secretion. b. is inhibited by testosterone. c. has low-level activity during the prepubertal period. d. both stimulates both FSH and LH secretion and is inhibited by testosterone. e. all of these answers.
What type of connective tissue contains thick bundles of collagen that run in random directions?
What will be an ideal response?
Which of the following statements concerning the uterus is true?
A. The inferior portion is the cervix. B. The cervical canal is in the superior portion of the uterus. C. The isthmus separates the body and the fundus. D. The uterine wall is composed of four layers. E. The fundus forms the major portion of this organ.
Contractions in which muscles shorten and produce movement are known as ________
A) isotonic contractions B) twitches C) isometric contractions D) resistance exercises