The gut of a vertebrate is often described as an elongated tube consisting of four layers of different cell types.Which represents the correct order of those layers, from innermost (lumen-facing) to outermost?

Question

Quizplus · Accepted Answer

The mucosa is the innermost layer facing the lumen, followed by the submucosa, circular muscle layer, and finally the longitudinal muscle layer. Options A, B, C, and E do not represent the correct order of the layers.

The Gut of a Vertebrate Is Often Described as an Elongated