The muscularis externa of the ____ is partially striated and partially smooth.
A) Esophagus
B) Large intestine
C) Small intestine
D) Stomach
E) None of the above -- the entire alimentary canal is lined with smooth muscle

Question

Quizplus · Accepted Answer

The esophagus has a muscularis externa that is partially striated (in the upper third) and partially smooth (in the lower third), with a transition in the middle third.

The Muscularis Externa of the ____ Is Partially Striated and Partially