The hormone that stimulates the release of bile from the gall bladder is:
A. Gastrin
B. Motilin
C. Cholecystokinin
D. Secretin
Answer: Option C
Solution (By JKExamLibrary)
Cholecystokinin (CCK), released from the duodenal mucosa in response to fatty chyme, causes contraction of the gall bladder and relaxation of the sphincter of Oddi, releasing bile. Secretin stimulates bicarbonate.
Explanation:
Transpiration is the loss of water in the form of vapor from the aerial parts of plants, mainly through stomata. Evaporation is from any surface, guttation is liquid water loss, condensation is vapor to liquid.
Consider the following statements about the human nervous system:
1. The sympathetic nervous system prepares the body for fight-or-flight.
2. The parasympathetic nervous system has a calming effect.
3. Both are part of the somatic nervous system.
Which of the above is/are correct?
Explanation:
Sympathetic (fight or flight) and parasympathetic (rest and digest) are divisions of the autonomic nervous system, not somatic. Thus, 3 is incorrect.
Explanation:
Simple columnar epithelium lines the stomach, intestines, and gallbladder, and functions in secretion and absorption. It often has microvilli (brush border) or goblet cells. Squamous epithelium lines alveoli and blood vessels, cuboidal kidney tubules.
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