List the major nerves of the sacral plexus
A) iliohypogastric, ilio-inguinal, and genitofemoral nerves
B) lateral femoral cutaneous, femoral, and obturator nerves
C) superior and inferior gluteal, posterior femoral cutaneous, sciatic, and pudendal nerves
D) tibial, femoral, sural, saphenous, and fibular nerves
E) long thoracic, thoracodorsal, saphenous, genitofemoral, and obturator nerves
Answer: C
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Which of the following is NOT a common characteristic of a negative feedback system?
a) regulates conditions in body that remain fairly stable over long periods b) important in maintaining homeostasis c) involves control centers in the nervous or endocrine systems d) stimulates changes that reverse the direction of the stimulus e) usually requires an event outside the feedback system to shut it off
Changes that occur in the urinary system with aging include all of the following except
A) a decline in the number of functional nephrons. B) a reduction in the GFR (glomerular filtration rate). C) increased sensitivity to ADH. D) problems with the micturition reflex. E) loss of sphincter muscle tone.
Generation of respiratory rhythm is now known to lie in the:
a. medullary respiratory center b. pneumotaxic center c. respiratory modulator d. pre-Bötzinger complex e. apneustic center
An elderly person becomes confused, and takes an overdose of a medication designed to block both cholesterol uptake from the GI tract and cholesterol synthesis by all cells
After 24 hr, the individual is severely hypocholesterolemic (i.e., has very low levels of circulating cholesterol). This individual would experience a transient lower level of which type of hormone? A. catecholamines B. protein hormones C. steroid hormones D. iodothyronines E. peptide hormones