A sacral fracture affecting the S3 and S4 nerve roots would result in a person having difficulty with evacuation of the bowels
Indicate whether the statement is true or false
TRUE
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Kathryn is pregnant and very eager to breast-feed after the baby is born. Her friend gives her a supplement to encourage prolactin secretion and Kathryn starts to take it during pregnancy. The supplement works and Kathryn's blood level of prolactin increases. She does not begin lactating during pregnancy because
A. maternal plasma levels of prolactin are low during pregnancy. B. the high levels of estrogen and progesterone in maternal plasma inhibit the effects of prolactin. C. the breast ducts do not develop until after parturition. D. the low levels of circulating estrogen and progesterone during pregnancy inhibit milk synthesis by the breasts. E. high levels of androgens inhibit milk synthesis by the breasts.
Describe the organization of the muscles of the mantle of a squid and the mechanism of jet propulsion
What will be an ideal response?
Rods
a. are more sensitive to light than cones. b. have low acuity. c. provide vision in shades of gray. d. have both low acuity and provide vision in shades of gray. e. all of these answers.
Each of the special senses can be expected to decline in some way over time. Describe some of the changes commonly seen in the function of the special senses with age