The digestive system :
The digestive system helps in digestion and absorption of food. Which we eat and with the elimination of the undigested and unabsorbed residue. The digestive system is composed of the alimentary canal, which extends from the mouth to the anus and of certain accessory organs.
Its organs :
Alimentary tract :
- a) Mouth
- b) Pharynx
- c) Oesophagus
- d) Stomach
- e) Large intestine
- f) Small intestine
- g) Rectum and anal canal
Large intestine has 8 (Eight) Parts :
- 1) Caecum with vermiform appendix
- 2) Ascending colon
- 3) Transverse colon
- 4) Descending Colon
- 5) Sigmoid Colon
- 6) Rectum
- 7) Anal canal
- 8) Anus
Small intestine has three parts :
- 1) Duodenum
- 2) Jejunum
- 3) Elium
Accessory organs :
1) Various gland – Six Salivary glands
2) Parotid gland – two
3) Submandibular gland – two
4) Pancreas
5) Liver and the biliary tract.