The layers of the digestive tract from the inside (lumen)to the outside are
A) submucosa, mucosa, muscularis, serosa
B) mucosa, submucosa, muscularis, serosa
C) mucosa, submucosa, serosa, muscularis
D) mucosa, serosa, submucosa, muscularis

Question

Quizplus · Accepted Answer

The correct order of the layers of the digestive tract from the innermost (lumen) to the outermost is mucosa (innermost layer lining the lumen), submucosa (connective tissue layer supporting the mucosa), muscularis (muscular layer responsible for peristalsis), and serosa (outermost layer of connective tissue that provides protection and support). Choice B lists these layers in the correct order.

The Layers of the Digestive Tract from the Inside (Lumen)to