Digestive System Flashcards
What are the organs of the opera digestive tract?
Mouth to stomach
What are the organs of the lower digestive tract?
Small intestine to anus
What are other names for the digestive tract?
Alimentary canal
gastrointestinal tract
What is the gastrointestinal tract consist of?
Stomach
intestines
How long is the alimentary canal?
10 m
What is the length of the of the digestive tract? From the mouth to the duodenum
0.5 m
Who is the length of the small intestines?
6- 8m
Name the layers of the wall of the G.I. tract
Serosa
Muscularis
Submucosal
Mucosa
Describe the layer of the G.I. tract call the serosa
Outermost layer
Mesentery and related layer are serous folds
Connected tissue layer
Peritoneum
Describe the muscularis of the G.I. tract
Circular muscle layer
Longitudinal muscle layer
Describe the submucosa of the G.I. tract
Secretory layer
Esophageal glands
Neurons
blood vessels
lymphatics
Describe the mucosa of the G.I. tract
innermost layer of G.I. tract
Comes into contact with chyme
Has three layers, mucus epithelium is in the innermost layer
Mucus epithelium
Lamina propia
Muscularis mucosae
Describe the muscularis of the GI tract
Thick layer of muscle tissue
What is another name for the mouth
Oral cavity
Buccal cavity
Describe the tongue
Solid mass of skeletal muscle covered by mucous membrane