Digestive anatomy.
What is the purpose of digestion?
Break down food into nutrients, absorb those nutrients.
R/L Hypochondriac
R/L lumbar
R/L Iliac
Epigastric
Hypogastric
Umbilical
The Abdominal Regions.
External to Mucosa
Consists of, blood and lymphatic vessels, nerve fibers
Submucosa.
purpose of the teeth
mash up food.
What does the Liver make?
Bile production.
Open Tube.
Mouth, pharynx, esophagus
Stomach large intestine and large intestine
Alimentary Canal.
Holds organs in place, sites of fat storage, provides a route for circulatory vessels and nerves.
Mesentery.
External to submucosa
Two layers:
1. circular muscularis (INNER LAYER)
2.Longitudinal Muscularis (OUTER LAYER)
Muscularis Externa.
Connected to the mouth
produce saliva
Contain parotid, sublingual and submandibular glands.
Salivary Glands.
teeth, tounge, salivary glands
Gallbladder, liver and pancreas.
Acessory digestive organs.
potential space defined by diaphragms, walls of the abdominal/pelvic cavity, and abdominal organs.
Peritoneal cavity
The outermost layer
The visceral peritoneum
Serosa.
Cleanses mouth
dissolves food chemicals for taste
Moistens food
breakdown of starch with enzymes
Function of saliva.
Prepares food for chemical digestion.
Chewing, churning food in stomach.
Mechanical Digestion.
Mucosa
submucosa
muscularis
serosa
4 layers of alimentary canal.
Ingest and chew food
some chemical digestion of carbs and fats.
What does the pancreas make
Insulin and glucagon.
Regulates blood sugar.
Complex molecules broken down to chemical components.
mouth-little carb digestion
Stomach- little protein digestions
Small intestine-tons of everything
Chemical Digestion.
Inner most layer
Consists of, epithelium, lamina propria, muscularis mucosae
Mucosa
Purpose of the tongue
Move, reposition and mash up food
What does the gallbladder make?
Stores and concentrates bile.