muscularis externa

(redirected from Outer longitudinal layer)

muscularis externa

[‚məs·kyə′lar·əs ek′stər·nə]
(histology)
The layer of the digestive tube consisting of smooth muscles.
References in periodicals archive ?
The muscularis externs of the stomach is traditionally described as consisting of an outer longitudinal layer, a middle circular layer, and an inner oblique layer.