Distortion of hair cells in the cochlea causes
A. initiation of action potentials in CN VI.
B. bending of the basilar membrane.
C. movement of the tympanic membrane.
D. initiation of action potentials in CN VIII.
D
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A woman undergoes coronary bypass surgery, in which a blood vessel from her leg is moved to her heart, where it supplements the blood supply following a heart attack. This procedure is a(n)
A. allograft. B. isograft. C. xenograft. D. autograft.
Alternative routes of blood supply are called __________.
A. metarterioles B. capillary beds C. preferred channels D. thoroughfare channels E. anastomoses
An element with 11 neutrons, 11 protons, and 11 electrons would have a mass number of ________.
11 33 22 21
In a normal electrocardiogram, the
A. P wave results from repolarization of the atria. B. QRS complex results from ventricular depolarization. C. P wave occurs after the QRS complex but before the T wave. D. T wave represents depolarization of the atria. E. repolarization of the atria is clearly visible.