If one cuts through a segment of small intestine from the outside into the lumen, in what order would the layers of the wall be cut?
A)Mucosa, submucosa, serosa, longitudinal smooth muscle, circular smooth muscle
B)Longitudinal smooth muscle, submucosa, mucosa, serosa
C)Mucosa, longitudinal smooth muscle, serosa, submucosa, circular smooth muscle
D)Longitudinal smooth muscle, serosa, submucosa, mucosa, circular smooth muscle
E)Serosa, longitudinal smooth muscle, myenteric plexus, submucosa, mucosa

Question

Quizplus · Accepted Answer

The correct order from the outermost to the innermost layer is: serosa, longitudinal smooth muscle, myenteric plexus (located between the longitudinal and circular muscle layers but not a layer of the intestinal wall itself), submucosa, and mucosa.

If One Cuts Through a Segment of Small Intestine from the Outside