Describe the muscular layer of the esophagus.
A)inner circular layer and outer longitudinal layer; superior third is skeletal muscle,middle third is mixed skeletal and smooth muscle,inferior third is smooth muscle
B)inner longitudinal layer and outer circular layer; superior third is skeletal muscle,middle third is mixed skeletal and smooth muscle,inferior third is smooth muscle
C)inner circular layer and outer longitudinal layer; superior third is smooth muscle,middle third is mixed skeletal and smooth muscle,inferior third is skeletal muscle
D)inner longitudinal layer and outer circular layer; superior third is smooth muscle,middle third is mixed skeletal and smooth muscle,inferior third is skeletal muscle
E)inner circular layer,middle oblique layer,outer longitudinal layer; inner layer is smooth muscle,middle oblique layer is mixed smooth and skeletal muscle,outer longitudinal layer is skeletal muscle

Question

Quizplus · Accepted Answer

The muscular layer of the esophagus consists of an inner circular layer and an outer longitudinal layer. The superior third is composed of skeletal muscle, the middle third is a mix of skeletal and smooth muscle, and the inferior third is made up of smooth muscle.

Describe the Muscular Layer of the Esophagus