Types of ENS (Enteric Nervous System) and Enzymes and Hormones of Digestion (copy)

Meissner’s plexus location

Submucosa

Meissner’s plexus function

Secretory

Meissner’s plexus parasympathetic control

Increase

Meissner’s plexus sympathetic control

Decrease secretions

Auerbach’s or myenteric plexus location

Muscularis externa

Auerbach’s or myenteric plexus function

Motility

Auerbach’s or myenteric plexus parasympathetic control

Increase

Auerbach’s or myenteric plexus sympathetic control

Decrease contractions and peristalsis

Salivary Amylase secreted by

Salivary glands

Salivary Amylase action

Digestion of starch and carbs

Hydrochloric acid (HCl) secreted by

Parietal cells

Hydrochloric acid (HCl) action

Conversion of Pepsinogen to Pepsin

Pepsinogen secreted by

Chief cells

Pepsinogen action

An inactive form of the enzyme pepsin

Intrinsic factor secreted by

Parietal cells

Intrinsic factor action

Necessary for the absorption of Vitamin B12

Gastrin secreted by

Enteroendocrine cells

Gastrin action

Stimulates the secretion of gastric juice.

Mucus secreted by

Mucous Neck cells

Mucus action

Coats and prevent erosion by gastric juice.