Marvin goes on vacation to Maine and for a week eats nothing but seafood. The next week, he experiences intense pain in his big toe. He probably has
A. diuresis.
B. gout.
C. edema.
D. Balkan endemic nephropathy.
Answer: B
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Choose the example that does not demonstrate a negative feedback loop of hormonal control.
A. A hormone is released from the hypothalamus, stimulating the anterior pituitary gland to release another hormone that is involved in metabolism. The flow of that hormone back to the hypothalamus inhibits the production of the first hormone in the pathway, also ceasing the production of the metabolism-influencing hormone. B. Pressure receptors sense the movement of a baby against and through the cervix during labor. They stimulate the hypothalamus to release a hormone that causes uterine contractions. This causes more pressure receptor stimulation, leading to larger releases of the hormone and stronger, more frequent contractions. Hormone release ceases after pressure sensations cease. C. A hormone that increases blood pressure is released. Baroreceptors in the arteries sense the pressure change and stimulate the brainstem to send signals to dilate blood vessels and counter the effect, decreasing blood pressure. D. A gland releases a hormone that causes free blood glucose to be collected and stored after a meal. After a time, the gland detects low free blood glucose and ceases production of the hormone.
What type of drug overrides the stimulative effect of acetylcholine?
a. anti-inflammatory b. competitive nondepolarizer c. spasmolytic d. anabolic steroid
An optic track carries information from
a. the lateral half of one retina and the medial half of the other retina b. the lateral halves of both retinas c. the medial halves of both retinas d. an entire retina of one eye e. half of the retina of one eye and the entire retina of the other eye
Which of the following is not true of a thoracic vertebra?
A. It usually has a facet at the end of each transverse process for attachment of a rib. B. The body is more massive than those of cervical vertebrae but less than those of lumbar vertebrae. C. The body has facets as points of articulation for ribs. D. It has a pair of transverse foramina. E. The spinous process is pointed and angled sharply downward.