GI Anatomy.txt

• author "me"
• tags "Anatomy "
• description "Anatomu"
• fileName "GI Anatomy"
• freezingBlueDBID -1.0
• Peristalsiss?
• Coordination, rhythmic, serial contraction of smooth muscle that forces food three the digestive tract.

Marks the entrance to the digestive tract.

• Contain the taste buds
• Differentiate between bitter, sweet, sour and salty sensation

Are the rear of the jaw teeth

• Parotid gland
• Submandibular gland
• Sublingual gland

• Secrete fluid called saliva.
• Its about 99% water with enzymes and mucus

1-1.5 liters

Amylase (ptyalin)

Lysozyme

Moves food from mouth to esophagus in 5-6 seconds

Cardiac sphincter

Pyloric sphincter

Enzyme to break down protein

It protects the stomach lining

A substance secreted by the gastric mucosa to allow absorption of vitamin B12

• A tube that is 20ft long and 1in diameter
• 90% of digestion takes place

Pyloric sphincter

Ileocecal valve

• Completion of absorption of water
• Manufacture of certain vitamins
• Formation of feces
• Expulsion of feces

Is the last 8in of the intestine, where fecal material is expelled.

• Is the largest glandular organ.
• Produces bile
• Holds 1.5L of blood

A yellow brown liquid that is necessary for the emulsification of fats.

Bile is stored in the gallbladder till its needed for fat digestion

• It is involved in both endocrine and exocrine duties.
• Produces 1-1.5L of pancreatic juice

• Protease (trypsin)
• Lipase (steapsin)
• Amylase (amylopsin)

• They digest components of chyme.
• Protein
• Fats
• Carbs

Connects to the common bile duct from the liver and gallbladder and empties through a small orifice.

The hypothalamus