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What substance stimulates pancreatic cells to secrete bicarbonate?

A.

Gastrin

B.

Secretin

C.

Somatostatin

D.

Cholecystokinin

Answer and Explanation

The Correct Answer is B

A. Gastrin: Gastrin stimulates gastric acid secretion in the stomach, not pancreatic bicarbonate.

B. Secretin: Secretin stimulates the pancreas to secrete bicarbonate, which neutralizes stomach acid in the duodenum.

C. Somatostatin: Somatostatin inhibits many digestive processes, including the release of digestive hormones, not bicarbonate.

D. Cholecystokinin (CCK): CCK stimulates the release of digestive enzymes from the pancreas but not bicarbonate.


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Related Questions

Correct Answer is D

Explanation

A. Bacteria: Interferons are not primarily effective against bacteria; they are specific to viral infections.

B. Parasites: While some immune responses can involve interferons, they are not specifically targeted against parasites.

C. Fungi: Interferons have limited activity against fungal infections, making them less effective compared to their antiviral properties.

D. Viruses: Interferons are proteins produced by virus-infected cells that help to protect neighboring cells from viral infection by enhancing the immune response and inhibiting viral replication.

Correct Answer is A

Explanation

A. Broad ligament: The broad ligament is a peritoneal fold that supports the uterus and attaches it to the lateral pelvic walls.

B. Adventitia: This is the outer connective tissue layer that supports the uterus but does not suspend it from the pelvic wall.

C. Round ligament: This ligament supports the uterus but primarily connects the uterus to the labia majora and does not suspend it from the lateral pelvic wall.

D. Ovarian fossa: This is a depression in the pelvic cavity that contains the ovaries, but it does not suspend the uterus.

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