A circular muscle band that contracts at an orifice is also known as a ________.
Fill in the blank(s) with the appropriate word(s).
sphincter
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Which of the following bones is not part of the face?
a. frontal b. zygomatic c. lacrimal d. maxilla
Before parturition,
A. the placenta secretes increased amounts of oxytocin. B. the uterus stretches, causing the release of ACTH from the adenohypophysis. C. there is an increase in the stimulatory effects of progesterone on the uterine muscle. D. prostaglandin synthesis is inhibited. E. fetal glucocorticoids decrease the production of progesterone by the placenta.
A person is born with a genetic mutation that causes rhodopsin to be improperly produced, rendering it useless. Which structure(s) will specifically be affected?
A. Lens B. Rods C. Cones D. Olfactory receptors
The forearm muscles that provide strength and gross control of the hand and fingers are innervated by the
A) radial nerve. B) ulnar nerve. C) median nerve. D) All of the answers are correct. E) None of the answers are correct.