The muscular layer farthest from the lumen is (the)

Question

Quizplus · Accepted Answer

The longitudinal layer of the muscularis externa is located farthest from the lumen in the wall of the digestive tract. The circular layer is closer to the lumen, followed by the oblique layer (which is only present in the stomach) and then the longitudinal layer. The muscularis mucosae is a layer of smooth muscle located within the mucosa layer, which is closer to the lumen than the muscularis externa. Therefore, choice B is the correct answer.

The Muscular Layer Farthest from the Lumen Is (The)