Having to adjust to a dark room after walking in from bright light is because:
A) rhodopsin does not function in dim light.
B) rods exposed to bright light need time to regenerate rhodopsin.
C) the lens requires time to accommodate dim light.
D) only cones function in dim light.
Answer: B
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Because of an inflammatory bowel disease (Crohn's disease) and a small bowel obstruction leading to bowel ischemia, an elderly woman requires bypass of her ileum and jejunum and is scheduled for a gastrocolostomy. The surgeon will ligate all arteries that send branches to the stomach. Which of the following arteries may be spared?
(A) Splenic artery (B) Gastroduodenal artery (C) Inferior pancreaticoduodenal artery (D) Left gastroepiploic artery (E) Proper hepatic artery
Which of the following serves to increase the surface area of a cell?
A. Microvilli B. The nucleolus C. Centrioles D. Microfilaments
The portion of the pia mater anchoring the spinal cord to the coccyx is the ____________________.
Fill in the blank(s) with the appropriate word(s).
The sagittal suture is a(n)
A. cartilaginous joint. B. fibrous joint. C. synovial joint. D. synchondrosis. E. amphiarthrosis.