The human digestive system breaks down food through mechanical and enzymatic digestion. It is composed of the gastrointestinal tract (GIT) which has four layers and runs from the mouth to the anus. The GIT performs the functions of ingestion, propulsion, digestion, absorption, and elimination. Key components of the GIT include the mouth, esophagus, stomach, small intestine, liver, gallbladder and pancreas, each playing an important role in digestion.

1. HUMAN DIGESTIVE SYSTEM
Presented by:
• HEENA PARVEENM.Pharm.
• Dept. of Pharmacology,
• Asst.Professor,
• DNVP.

3. GIT/ALIMENTARY CANAL
Anatomy of GIT:
It is basically concerned with breakdown of complex molecules of food
in to simple molecules by the help of enzymes secreted along with
digestive juices & mechanical digestion, which can be easily
abosorbed form GIT.
Functions of GIT:
Ingestion
Propulsion
Digestion
Absorption
Eliminaton/Defecation

4. HISTOLOGY OF GIT
The wall of GIT is composed of 4 layers :

6. COMPONENTS OF GIT
MOUTH:

15. OESOPHAGUS

21. HISTOLOGY OF LIVER

27. GALL BLADDER ANATOMY

37. THANK
YOU