click below
click below
Normal Size Small Size show me how
Digestive..System
The Digestive System for Massage
Question | Answer |
---|---|
Accessory organs | organs that secrete substances that travel through ducts into the digestive tract to help with digestion; not part of the digestive tract. |
Serosa | the external epithelial membrane that surrounds the organs (visceral peritoneum) and walls (parietal peritoneum) in the peritoneal cavity |
Messentery | supportive structure composed of 2 layers of serosa; connects to the intestines; contains the blood vessels;lymph vessels, and nerves that run to and from the intestinal wall. |
Muscularis | two layers of smooth muscle; mixes food with digestive juices and moves food through the digestive tract. |
Peristalsis | wavelike movement of food through the digestive tract. |
Submucosa | layer of connective tissue beneath the mucosa that contains blood vessels, nerves, and lymph vessels |
Mucosa | internal mucous membrane through which the body absorbs digested substances into the blood. |
Villi | small finger like projections on the mucosa where absorption of nutrients and fats takes place; contain blood vessels and lacteals |
Parotid glands | largest pair of salivary glands; located anterior and inferior to the ear. |
Submandibular glands | salivary glands located under the mandible |
Sublingual glands | salivary glands located under the tongue |
Soft palate | soft tissue at the back of the roof of the mouth; contains the uvula |
Cardiac sphincter | a circular or ring-shaped muscle at the base of the esophagus; prevents food and gastric juice from going back up the esophagus |
Fundus of the stomach | the bulge at the top of the stomach |
Rugae | folds in the stomach lining |
Pylorus | the lowest portion of the stomach; contains pyloric sphincter |
Pyloric sphincter | muscle that controls the passage of food from the stomach to the small intestine |
Duodenum | first 10" of the small intestine; receives bile and pancreatic juice |
Jejunum | the middle segment of the small intestine about 6'-8' long |
Ileum | last 8'-12' of the small intestine connects to the cecum of the large intestine via the ileocecal valve |
Cecum(caecum=pouch) | large pouch that forms the first segment of the large intestine |
Vermiform appendix | projects from the posteromedial margin of the cecum |
Ascending colon | ascends from the cecum along the right side of the abdomen |
Transverse colon | crosses the abdominal cavity from right to left just below the diaphragm |
Descending colon | descends from the transverse colon down the abdomen on the left side |
Sigmoid colon | S-shaped section of the colon before the rectum |
Rectum | last 7.5" of the digestive tract |
Anus(anus=ring) | last 2-3cm of the rectum; contains two sphincter muscles that control defecation. |
Cystic duct | carries bile from the gallbladder; joins with the hepatic duct |