Cerebral blood flow is regulated by ________
A) skin temperature
B) ADH
C) the hypothalamic "thermostat"
D) intrinsic autoregulatory mechanisms
D
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Which of the following is characteristic of complete antigens?
A) small molecules B) reactivity with an antibody C) contain many repeating chemical units D) inhibit production of antibodies
In a laboratory experiment, adding curare, which binds to acetylcholine receptors, to the solution around a muscle decreases the size of the end-plate potential. Adding prostigmine, an acetylcholinesterase blocker, increases the size of the end-plate potential. Explain why.
What will be an ideal response?
Which of the following is not an organ of the urinary system?
A. urethra B. collecting duct C. ureter D. urinary bladder E. kidney
A defect in nitric oxide synthetase gene may result in reduced ________ of cerebral arteries since nitric oxide production would be impaired.
A. vasoconstriction B. compliance C. vasodilation D. arterial pressure