Mrs. Oberhaus needs surgery to correct a severe case of Raynaud's disease, affecting one of her hands
What surgical procedure will be performed? After the surgery, will she be more likely to suffer from anhidrosis (lack of sweating) or hyperhidrosis (profuse sweating) in the affected hand?
What will be an ideal response
Mrs. Oberhaus' doctor will perform a sympathectomy. Cutting the sympathetic fibers will result in dilation of the affected blood vessels. Because sweating is stimulated by sympathetic nerves, after they are cut the affected hand will suffer from anhidrosis.
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A. deporlarizes and releases more neurotransmitter. B. depolarizes and releases less neurotransmitter. C. hyperpolarizes and releases more neurotransmitter. D. hyperpolarizes and releases less neurotransmitter.
Explain why adult animals and plants replace many of their cells throughout their lifetimes.
What will be an ideal response?
The absorptive state occurs
A. from when you are eating until about 4 hours after the meal. B. about 12 hours after a meal, when you are sleeping.
Functions of the large intestine include
A) storage of fecal material prior to defection. B) absorption of vitamins. C) reabsorption of water and compaction of feces. D) All of the answers are correct. E) None of the answers is correct.