MICROANATOMY

Detailed explanation-1: -The mucosa, or mucous membrane layer, is the innermost tunic of the wall. It lines the lumen of the digestive tract. The mucosa consists of epithelium, an underlying loose connective tissue layer called lamina propria, and a thin layer of smooth muscle called the muscularis mucosa.

Detailed explanation-2: -Esophagus. The wall of the esophagus consist of four layers: the innermost layer is the mucosa (top arrow bar in image), just outside of that is the submucosa (lighter layer between arrow bars), the next layer is the muscularis (lower arrow bar), and the outermost layer is called the adventitia.

Detailed explanation-3: -Mucosa is the soft tissue that lines the body’s canals and organs in the digestive, respiratory and reproductive systems. It’s also called the mucous membrane. Mucosa has three layers: epithelium, lamina propria and muscularis mucosae.