A 70-year-old-man has a blockage at the origin of the infe- rior mesenteric artery. He does not have ischemic pain because of collateral arterial supply. Which of the following arteries is the most likely additional source of blood to the descending colon?
A. Left gastroepiploic
B. Middle colic
C. Sigmoid
D. Splenic
E. Superior rectal
Answer: B. Middle colic
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The skeletal system includes all of the following except:
a. bones b. cartilage c. tendons d. ligaments
That part of the nervous system that is voluntary and conducts impulses from the CNS to the skeletal muscles is the ________ nervous system.
Fill in the blank(s) with the appropriate word(s).
The hypophyseal portal system connects the _________ with the _________.
A. anterior pituitary; hypothalamus B. posterior pituitary; hypothalamus C. anterior pituitary; posterior pituitary D. hypothalamus; thyroid E. pituitary glands; thyroid
Most body water is located
A) inside cells. B) in plasma. C) in interstitial fluid. D) in lumens of organs open to the outside.