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Biology : Human Organ Systems I
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LABEL (ON DIAGRAM) : HUMAN ORGAN : DESCRIPTION
- 1
- Nasal cavity
Larger dust particles in the inhaled air are trapped in the mucus and hair found here.
- 2
- Oral Cavity
Food is mixed with saliva here.
- 3
- Salivary Gland
It secretes saliva.
- 5
- Trachea
It is a muscular tube containing semicircular rings of cartilages.
- 6
- Bronchi
These are formed by division of trachea.
- 7
- Lungs
Exchange of gases occurs here.
- 8
- Heart
It pumps blood to various parts of the body.
- 9
- Esophagus
Food descends from mouth to stomach through this muscular tube.
- 10
- Gall Bladder
Bile is stored here.
- 11
- Liver
Bile is secreted here.
- 12
- Stomach
Churning of food occurs here.
- 13
- Pancreas
It secretes pancreatic juice.
- 14
- Large Intestine
Most of the ingested water is absorbed here.
- 15
- Small Intestine
Absorption of food occurs here.
- 16
- Anus
Undigested food is excreted out of the body through this opening.
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