Physiology of normal esophageal motility
RK Goyal, A Chaudhury - Journal of clinical gastroenterology, 2008 - journals.lww.com
The esophagus consists of 2 different parts. In humans, the cervical esophagus is composed
of striated muscles and the thoracic esophagus is composed of phasic smooth muscles. The
striated muscle esophagus is innervated by the lower motor neurons and peristalsis in this
segment is due to sequential activation of the motor neurons in the nucleus ambiguus. Both
primary and secondary peristaltic contractions are centrally mediated. The smooth muscle of
esophagus is phasic in nature and is innervated by intramural inhibitory (nitric oxide …
of striated muscles and the thoracic esophagus is composed of phasic smooth muscles. The
striated muscle esophagus is innervated by the lower motor neurons and peristalsis in this
segment is due to sequential activation of the motor neurons in the nucleus ambiguus. Both
primary and secondary peristaltic contractions are centrally mediated. The smooth muscle of
esophagus is phasic in nature and is innervated by intramural inhibitory (nitric oxide …