The basal basophilia of serous enzymesecreting cel

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ATI LPN Test Bank

The basal basophilia of serous (enzyme-secreting) cells results from the presence in basal cytoplasm of:

A. extensive rough endoplasmic reticulum B. extensive smooth endoplasmic reticulum C. extensive Golgi apparatus D. many mitochondria

Correct Answer: A

Rationale: Rough ER causes basophilia due to ribosomes.

The endothelium lining hepatic sinusoids is:

A. continuous B. fenestrated C. open-ended D. impermeable to large molecules

Correct Answer: B

Rationale: Fenestrated endothelium allows plasma exchange.

Hepatocytes are:

A. lymphoid tissue B. epithelial tissue C. muscle tissue D. adipose tissue

Correct Answer: B

Rationale: Hepatocytes are epithelial cells forming liver parenchyma.

Although the gall bladder lining superficially resembles the mucosa of the small intestine, the gall bladder lacks:

A. an epithelial lining B. columnar cells C. microvilli D. a muscularis mucosa, crypts, villi, and goblet cells

Correct Answer: D

Rationale: The gall bladder lacks these intestinal features.

What type of cell releases somatostatin?

A. b cells B. a cells C. plasma cells D. D cells

Correct Answer: D

Rationale: D cells in the pancreas and stomach release somatostatin.

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