All parts Flashcards
(17 cards)
What does the digestive tract consist of? (4 layers)
Mucosa, Submucosa, Muscularis Externa, Serosa
What is the Mucosa made up of?
Epithelium and the Lamina Propria
In the Muscularis Externa, what separates the circular and longitudinal muscles?
Mysenteric Plexus
Adventitia is seen in what 3 parts?
Oral Cavity, Pharynx and Esophagus
Where does Peristalsis occur?
In the Esophagus and Stomach
Where does Segmentation take place?
Small Intestine
_________, __________, and __________ have visceral peritoneum.
Small Intestine, Liver, and Stomach
When does a bolus become chyme?
After it passes the Pylorus
___________, is the churning of chyme in the pyloric sphincter
Retropulsion
What 3 regions is the stomach in?
Epigastric, Left Hypochondriac, and Umbilical Region
What 2 places can you store food in the Digestive System?
In the stomach, and in the Sigmoid colon of the Large Intestine
What is receptive relaxation?
Stomach muscles relaxing to move food
Parietal (Oxytnic cells) secrete what?
Hydrochloric Acid
Chief (Zymogin cells) secrete what?
Pepsinogen
What two additional enzymes are in the stomach that help in the digestion of milk in newborns?
Rennin and Gastric Lipase
T/F: the External Anal Sphincter is an involuntary muscle
False
Name the 6 sphincters in the digestive tract.
Upper Esophageal Sphincter, Lower Esophageal Sphincter, Pyloric Sphincter, Ileocecal valve, and the Internal/External Anal Sphincters
