Histology Embryology Inner layer: the mucosa x (mucous membrane) Three sub-layers epithelium Mucosa: Epithelium lamina propria(may Lamina propria Muscularis mucosae contain glands) Muscularis mucosae (Smooth muscle) Gland in mucosa Duct of gland outside alimentary canalInner layer: the mucosa* (mucous membrane) Three sub-layers – epithelium – lamina propria (may contain glands) – Muscularis mucosae (Smooth muscle) *