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Key Words

sight hearing smell taste touch

iris cornea pupil sclera tissue
eyeball transmission sound pinna ear canal

auditory canal eardrum passage eustachian tube cochlea

nostrils nasal hair septum cartilage nasal cavity
palate moist mucosa saliva circulation

Let’s Exercise
Let ’ s Ex er cise

I. Fill in the blanks.

1. The is the black circular opening in the iris

that lets light in.

2. The is the white portion of your eye.

3. The is the body’s primary sense of smell.

4. The sense of is felt throughout the body.

5. Excess intake harms the taste buds.

II. Identify the sense organs and choose the correct option.

A B C D E

1. This organ has taste buds which detect different tastes of food.

i. A ii. B iii. C iv. D v. E

2. This organ covers our body.

i. A ii. B iii. C iv. D v. E

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