The shape of hepatocytes is best described as

ATI LPN

ATI LPN Test Bank

The shape of hepatocytes is best described as:

A. cuboidal B. columnar C. squamous D. fusiform

Correct Answer: A

Rationale: Hepatocytes are roughly cuboidal in shape.

What type of cell releases glucagon?

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

Correct Answer: B

Rationale: Alpha cells in the pancreas release glucagon.

Which of these organs is not considered an accessory digestive structure?

A. mouth B. salivary glands C. pancreas D. liver

Correct Answer: A

Rationale: The mouth is part of the GI tract, not an accessory organ.

Which phase of deglutition involves contraction of the longitudinal muscle layer of the muscularis?

A. voluntary phase B. buccal phase C. pharyngeal phase D. esophageal phase

Correct Answer: D

Rationale: The esophageal phase involves longitudinal muscle for peristalsis.

Pancreatic juice ________.

A. deactivates bile B. is secreted by pancreatic islet cells C. buffers chyme D. is released into the cystic duct

Correct Answer: C

Rationale: Pancreatic juice neutralizes acidic chyme.

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