muscularis externa

(redirected from tunica muscularis)
Also found in: Dictionary, Thesaurus, Medical.
Related to tunica muscularis: Muscularis externa, Muscular coat

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 tunica muscularis was made up of two layers of smooth muscles; inner circular and outer longitudinal layer.
A) and (B) Deep and longitudinal mucosal folds, stratified epithelium, goblet cells (gc), dense connective tissue with no distinction between the lamina propria and submucosa, and tunica muscularis composed of an inner longitudinal striated muscular layer (lm) and an outer circular layer (cm) (Haematoxylin and eosin stain; x50 and x200, respectively).
Compared to the pyloric region, the gastric corpus presents simple tubular gastric glands (gg) and a tunica muscularis composed of smooth muscle arranged in inner oblique (om) and outer circular layers (cm) (Papanicolaou stain; x100, x200, respectively).
Tunica submucosa and tunica muscularis externa thicknesses were measured at a minimum of 48 points at even distances around the intestinal sections.
The basic characteristics of the genital ducts are similar to other tubular organs; that is, the parenchyma consists of concentric layers of tissue: tunica serosa (or tunica adventitia), tunica muscularis, tela submucosa, and mucosa.
Full browser ?