Question

II viel LUNE 2019) Ju
colon and rectum) and anus.
Ans. Mammalian (human) alimentary canal comprises mouth, buccal cavity, pharynx,
oesophagus, stomach, small intestine (duodenum, jejunum and ileum), large intestine (caecum,
The mouth, bounded by two lips open into oral cavity.
Buccal cavity contains teeth and tongue, and receives saliva from 3 pairs of salivary
glands. Teeth are meant for cutting and mastication of food.
Pharynx. It is a vertical tube. It is a cross passage for food and air. It has uvula and
epiglottis which closes the internal nares and glottis respectively during swallowing of food
to ensure the passage of food into oesophagus (food pipe).​

Answer 1

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