BSC 1086C Chapter Notes - Chapter 24: Salivary Gland, Intestinal Gland, Adventitia
Document Summary
Mouth, pharynx, esophagus, stomach, small intestine, large intestine. There are four major layers of the digestive tract. The mucosal epithelium is either a stratified or simple epithelium nonkeratinized stratified squamous cells (resist stress and abrasion) Oral cavity, pharynx, and esophagus are lined with. Stomach, small intestine, and large intestine are lined with simple columnar cells (for secretion and absorption) The mucosa of the small intestine makes up circular folds or plicae circulares. Plicae circulares increase the surface area for increased absorption. Contains blood vessels, nerves, smooth muscle, and lymphatic vessels. A narrow band of smooth muscle at the border of the. Exocrine glands: buffers to help with secretions in places more acidic, Large blood vessels and lymphatics are in this layer enzymes. This is a network of parasympathetic ganglia and sympathetic postganglionic fibers. Not found in pharynx, esophagus, and rectum. The serosa ( visceral peritoneum ) is continuous with the parietal peritoneum.