Figure 16-1 Structural Components of the Digestive Tract
Use Figure 16-1 to identify the labeled part.
-Label N represents which structure?
A) muscularis mucosa
B) circular muscle layer
C) longitudinal muscle layer
D) submucosal gland
E) mucosal gland

Question

Figure 16-1 Structural Components of the Digestive Tract
Use Figure 16-1 to identify the labeled part.
-Label N represents which structure?
A) muscularis mucosa 
B) circular muscle layer 
C) longitudinal muscle layer 
D) submucosal gland 
E) mucosal gland

Quizplus · Accepted Answer

The muscularis mucosa is a thin layer of smooth muscle that lies beneath the mucosal layer. It helps to move the mucosa and to secrete mucus.