The Meissner's plexus is found between which layers?

The Meissner's plexus is found between which layers?

• A. Between the circular smooth muscle layer and the mucosa
• B. Between the external longitudinal layer and the circular layer
• C. Within the muscularis externa
• D. In the adventitia

Answer: (A)

Meissner's plexus is the submucosal (submucosa) nerve network of the gut. It sits in the submucosa, which lies between the mucosa (and its muscularis mucosae) and the inner circular smooth muscle layer of the muscularis externa. This position lets it regulate glandular secretion and local blood flow in the mucosa. The other major plexus, the myenteric (Auerbach's) plexus, is located between the circular and longitudinal layers of the muscularis externa and governs motility, not secretion. Adventitia is the outer connective tissue layer, not where Meissner's sits.

Meissner's plexus is the submucosal (submucosa) nerve network of the gut. It sits in the submucosa, which lies between the mucosa (and its muscularis mucosae) and the inner circular smooth muscle layer of the muscularis externa. This position lets it regulate glandular secretion and local blood flow in the mucosa. The other major plexus, the myenteric (Auerbach's) plexus, is located between the circular and longitudinal layers of the muscularis externa and governs motility, not secretion. Adventitia is the outer connective tissue layer, not where Meissner's sits.