Which of the following controls the release of bile into the duodenum?
A. The gastroesophageal sphincter
B. The hepatopancreatic sphincter
C. The ileal papilla
D. The pyloric sphincter
E. The biliary valve
Answer: B
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The adult spinal cord typically ends between vertebrae
A) T12-L1. B) S4-S5. C) L5-S1. D) L1-L2. E) S5-Co1.
As a more subtle means of destruction, neutrophils secrete lactoferrin, a protein that tightly binds with iron, making it unavailable for use by invading bacteria
a. True b. False Indicate whether the statement is true or false
The thoracic cavity is ________ to the abdominopelvic cavity
A) inferior B) lateral C) proximal D) superior E) dorsal
When the arrector pili muscles contract
A. the body is able to lose heat. B. no change is noted on the skin surface. C. the hair on your arms and legs begins to curl. D. the sweat glands empty their contents onto the surface of the skin. E. "goose bumps" form on the skin.