Nonrespiratory functions of the lungs include acting as "filters" for removing certain chemicals and blood clots
Indicate whether the statement is true or false.
TRUE
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Catecholamines activate postsynaptic cells by ________.
A. inhibition of adenylate cyclase B. inhibition of calmodulin C. increased production of cyclic AMP D. increased Ca2+ influx into the target cell
In nervous system physiology, the definition of a reflex is a ________
A) rapid, predictable, involuntary motor response to a stimulus B) variable response to a startling stimulus C) well thought out, therefore slow, response to an emergency situation D) voluntary response, which can be withheld
A region on the medial surface of each cerebral hemisphere that brings about complex patterns of movement, such as opening and closing the hands, is the
a. angular gyrus b. premotor cortex c. posterior parietal cortex d. supplemental motor area e. prefrontal association area
pH is
a. equal to log 1/[H+] b. equal to pK + log [HCO3-]/[CO2] c. low when acidosis exists d. both a and b e. all of the above