The anterior abdominal wall of a 21-year-old woman impacts the steering wheel during a head-on car collision. The blunt trauma resulted in a lacerated pancreas with digestive enzyme spilling anterior. Which of the following locations would initially receive the contents of the lacerated pancreas?
(A) Supracolic part of greater peritoneal sac
(B) Infracolic part of greater peritoneal sac
(C) Subhepatic space
(D) Omental bursa
(E) Subphrenic space
Ans: (D) Omental bursa
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Which of the following does not impede the regeneration of CNS axons?
A. Scar tissue may form, obstructing regrowth. B. Oligodendrocytes do not release a nerve growth factor. C. CNS axons lack the myelin sheath needed for regeneration. D. No exceptions; all of the choices impede axon regeneration.
Heart tissue is nourished by
the SA node. the blood passing through the chambers of the heart. the chordae tendineae. blood in the coronary blood vessels (i.e., through the coronary arteries to capillaries).
What is true about the urethral sphincters?
A) Both sphincters are under voluntary control. B) The internal urethral sphincter is made up of skeletal muscle. C) The internal urethral sphincter is under involuntary control. D) The external urethral sphincter is under involuntary control.
Referred pain, often down the left shoulder and arm, in response to myocardial ischemia is called
a. ischemic pain. b. traveling pain. c. angina pectoris. d. myocardial infarction.