February 19, 2017

Homework Help: Biology - GI Tract

Posted by Lena on Sunday, March 27, 2011 at 5:31pm.

In my notes it says that the last 2/3 of the esophagus is controlled by smooth muscle (controlled by ANS and ENS). What is ENS? I'm listening to the lecture the it's something nervous system but I have no idea what the E stands for.

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