When you travel on a moving walkway or an elevator, the linear acceleration of your body is sensed by the
A. cochlea.
B. semiciercular canals.
C. utricle and saccule.
D. ossicles.
C
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Calcium channel blockers are frequently used to
A. increase the heart rate. B. treat tachycardia or other arrhythmias. C. speed up conduction of impulses through the AV node. D. slow the closing of potassium ion channels. E. treat bradycardia and low blood pressure.
During periods of fasting, why is fat said to have a protein-sparing effect?
A) The body must have an adequate protein intake in order to absorb and metabolize fats. B) The body oxidizes its spare protein before it depletes its fat reserves. C) The body must have an adequate fat intake in order to absorb and metabolize proteins. D) The body metabolizes fats and proteins through the same metabolic pathways. E) The body does not oxidize its proteins unless it has consumed its fat reserves first.
An EPP is a graded potential
Indicate whether the statement is true or false
In response to high blood pressure, stretch receptors called __________ in the walls of arteries carrying blood to the head will trigger a reflex that causes the heart to __________ its beats per minute.
A. baroreceptors; decrease B. proprioceptors; decrease C. baroreceptors; increase D. proprioceptors; increase E. chemoreceptors; increase