Bile is secreted by the ________ and has its effect in the ________.
A. pancreas; duodenum
B. gastric glands; stomach
C. salivary glands; mouth
D. liver; duodenum
Answer: D
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Which of the following statements correctly relates to the 3rd part of the duodenum?
(A) It is supported by the suspensory ligament of the duodenum. (B) The bile and pancreatic ducts enter its posteromedial wall. (C) It is crossed by the superior mesenteric artery and vein. (D) It attaches to the hepatoduodenal ligament. (E) It lies to the right and runs parallel to the inferior vena cava.
The first "R" in RER stands for ________.
Fill in the blank(s) with the appropriate word(s).
When cholinergic receptors are stimulated,
A) sodium ions enter the postsynaptic neuron. B) sodium ions leave the postsynaptic neuron. C) chloride ions enter the postsynaptic neuron. D) chloride ions leave the postsynaptic neuron. E) norepinephrine deactivates acetylcholine.
Only about ____ percent of the energy found in nutrient molecules is transferred to ATP
a. 10 b. 25 c. 50 d. 75 e. 90