The stomach performs all of the following except:
a. stores ingested food
b. secretes HCl
c. secretes enzymes that begin protein digestion
d. converts chewed food into a thick, liquid paste called chyme
e. allows digested material to move quickly into the duodenum
E
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Which of the following describes the major significance of the element nitrogen in the human body?
a) ionized form makes body fluids acidic b) ionized form is most plentiful anion in extracellular fluid c) ionized form is needed for action of many enzymes d) is a component of all proteins and nucleic acids e) ionized form is most plentiful cation in extracellular fluid
The pancreatic hormone that causes blood sugar levels to fall is
A) cortisol. B) somatotropin. C) insulin. D) glucagon. E) aldosterone.
What structure is formed by the thickening of the smooth muscle cell wall surrounding the bladder 2) that regulates the flow of urine from the bladder?
A) internal urethral sphincter B) detrusor muscle C) urethral muscle D) external urethral sphincter E) bladder sphincter
This part of the peripheral nervous system controls smooth muscle, cardiac muscle, and glands
A) spinal cord B) sensory division C) somatic division D) autonomic nervous system