An antagonist blocks the action of a chemical messenger by binding to its receptor
Indicate whether the statement is true or false.
TRUE
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In response to movement of the oval window,
a. pressure waves occur in the scala vestibuli b. a portion of the basilar membrane vibrates c. certain hair cell receptors in the organ of Corti become excited d. the round window is displaced e. all of the above occur
Pupillary constriction results from contraction of the ________ muscle of the iris as a consequence of ________ stimulation
a. circular; sympathetic b. circular ; parasympathetic c. radial; sympathetic d. radial; parasympathetic e. suspensory; somatic motor
Oxygenated blood is delivered to the left atrium through the ____________.
Fill in the blank(s) with the appropriate word(s).
A 32-year-old woman is admitted to the hospital with third-degree burns on her entire right leg, entire right arm, and the back of her trunk. Estimate the percentage of her body surface area affected by these burns
A) 9%
B) 18%
C) 36%
D) 45%
E) 91%