Which of the following is NOT a part of the alimentary canal of the human body?

Correct option is B

​The correct answer is (b) Trachea

Explanation:

The alimentary canal (digestive tract) is the long muscular tube in the human body that extends from the mouth to the anus and is responsible for digestion and absorption of food.

• The trachea (windpipe) is not a part of the alimentary canal; instead, it belongs to the respiratory system and is responsible for transporting air to and from the lungs.
• The alimentary canal consists of structures involved in the digestion of food, while the trachea functions in breathing.

Information Booster:

Parts of the Human Alimentary Canal:

1. Mouth – Ingestion of food and initial digestion by saliva.
2. Pharynx – Common passage for food and air.
3. Oesophagus – Transports food to the stomach.
4. Stomach – Breaks down food with acids and enzymes.
5. Small Intestine – Absorption of nutrients.
6. Large Intestine – Absorbs water and forms waste.
7. Rectum – Stores feces before excretion.
8. Anus – Expels undigested waste.

Function of the Trachea (Windpipe):

• It is part of the respiratory system and connects the larynx to the lungs.
• It transports oxygen to the lungs and removes carbon dioxide.
• The trachea has cartilage rings to keep it open and prevent collapse.