What is the correct order for the layers of the GI tract wall, from innermost (next to lumen) to outermost?
A. Adventitia/serosa - mucosa - submucosa - muscularis
B. Adventitia/serosa - muscularis - mucosa - submucosa
C. Muscularis - mucosa - adventitia/serosa - submucosa
D. Mucosa - submucosa - muscularis - adventitia/serosa
E. Mucosa - submucosa - adventitia/serosa - muscularis
Answer: D
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Which of the following would be expected to cause hyponatremia?
A. Decreased ADH production B. Increased aldosterone production C. Increased urine output D. Decreased aldosterone production E. High intake of Na+
The cone-shaped section of bone located at the base of each temporal bone is called the:
A) lamboid suture. B) mastoid process. C) cribriform plate. D) ethmoid bone.
Which heart chamber has the thickest muscular walls?
a. right ventricle b. right atrium c. left ventricle d. left atrium
Which of these statements about melatonin is false?
A) Exposure to light inhibits production. B) Exposure to light stimulates production. C) It inhibits releases of GnRH. D) It is produced by pinealocytes. E) It is made from serotonin.