In congenital megacolon or Chagas' disease the following is affected:

Correct Answer: C

Rationale: Both conditions affect the enteric nerve plexuses (e.g., Auerbach's and Meissner's), leading to motility issues like dilatation.

Correct Answer: D

Rationale: Fundic glands are straight or slightly branched, not highly coiled; pyloric glands are more coiled.

Correct Answer: A

Rationale: Bile is formed by hepatocytes, not the gallbladder, which only concentrates and stores it.

Correct Answer: C

Rationale: Kupffer cells are phagocytic and part of the sinusoidal wall, but they are in the lumen, not the space of Disse.

Correct Answer: B

Rationale: Salivary amylase digests starches, not lactose. Lactose digestion occurs in the small intestine via lactase.