What happens during the intestinal phase of digestion?

Correct Answer: B

Rationale: In the intestinal phase, chyme is mixed with pancreatic juice and bile, and nutrients are absorbed primarily in the small intestine.

Correct Answer: A

Rationale: Foliate papillae are located on the posterolateral sides of the tongue, not the tip, and are rudimentary in humans but prominent in rabbits.

Correct Answer: C

Rationale: The muscularis externa of the esophagus transitions from skeletal muscle (upper third) to smooth muscle (lower third), not entirely smooth muscle.

Correct Answer: C

Rationale: Intracellular canaliculi are not continuous with rER; they are specialized for ion transport and expand with microvilli during secretion.

Correct Answer: B

Rationale: Pyloric glands have deeper pits (about half the mucosal thickness) compared to the shorter pits of fundic glands.