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Hydrochloric acid (HCI) is secreted from?

A.

chief

B.

parietal

C.

mucous

D.

regenerative (stem)

Answer and Explanation

The Correct Answer is B

A. Chief cells secrete pepsinogen, not HCl.

B. Parietal cells in the stomach lining are responsible for secreting hydrochloric acid (HCl). This acid is crucial for digestion and killing pathogens.

C. Mucous cells secrete mucus, which protects the stomach lining from the acidic environment. They do not secrete HCl.

D. Regenerative (stem) cells are involved in the renewal of the stomach lining, but they do not secrete HCl.


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Related Questions

Correct Answer is B

Explanation

The liver in a newborn (neonate) plays a crucial role in metabolism, detoxification, and the production of vital proteins and enzymes. However, the liver itself does not process food, extract nutrients, or eliminate residue in the context of digestion. These functions are primarily carried out by the digestive system, including the stomach, intestines, and other associated organs. Therefore, this statement is false.

Correct Answer is C

Explanation

A. Lactose is a sugar in breast milk and is not the only source of nutrition during the first 2-3 days postpartum.

B. Casein is a protein found in breast milk but not the sole source of nutrition for the infant.

C. Colostrum is the nutrient-rich first milk produced by the mother in the first 2-3 days postpartum and provides essential nutrients and antibodies to the newborn.

D. Meconium is the infant's first stool and not a source of nutrition.

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