Answer:
The answer is Mucosa.
Step-by-step explanation:
The most inward part of the gastrointestinal tract is the mucosa is the innermost layer. The Mucosa surrounds the lumen of the tract, and comes into direct contact with digested food (chyme). The mucosa itself is made up of three layers:
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Answer: the mucosa
The mucosa's inner lining is composed of columnar epithelium for most of the alimentary canal. Stratified squamous is used in the esophagus, oral cavity, and anus.
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