Which Layer of the Digestive Tract is in Direct Contact

Question

Which layer of the digestive tract is in direct contact with ingested food?
A) Mucosa
B) Muscularis
C) Submucosa
D) Serosa

Accepted Answer

The mucosa is the innermost layer of the digestive tract and is in direct contact with ingested food. It is responsible for nutrient absorption and secretion of mucus.