The most important baroreceptors involved in the moment-to-moment regulation of blood pressure are located in the:
a. medulla and glossopharyngeal nerve
b. internal carotid and vagus nerve
c. carotid sinus and aortic arch
d. glossopharyngeal nerve and vagus nerve
e. medulla and carotid sinus
c
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A middle-aged male patient complains of a weak "stream" and nocturia. You believe the most likely cause to be:
A) a bladder infection. B) a spinal cord lesion affecting his pelvic splanchnic nerves. C) benign prostatic hypertrophy. D) a ureteric calculi. E) an obstruction of his intramural (preprostatic) urethra.
Roughly 60 percent of plasma proteins are composed of ________.
Fill in the blank(s) with the appropriate word(s).
Which facial bone is not one of a pair?
A. maxillary B. zygoma C. lacrimal D. palatine E. None of the above; they are all pairs.
Which of the following choices is FALSE? The chromophore
A) Absorbs energy from photons. B) Is a derivative of vitamin D. C) Is covalently linked to a member of the opsin gene family. D) Plays a role in photoreceptor sensitivity to different colors.