The document discusses the five senses - sight, hearing, smell, taste, and touch - and their corresponding sensory organs. It notes that the eyes are the organ of sight, the ears are the organs of hearing, the nose is the organ of smell, the tongue is the organ of taste, and the skin is the organ of touch. It also explains that the nervous system, which is made up of the brain, spinal cord, and nerves, works with the five senses and allows the brain to receive messages from the senses and provide instructions in response.

1. UNIT 4 NERVOUS SYSTEM

2. We have 5 senses and each sense
has an organ.
sight hearing smell
taste touch

3. The organ of touch is the skin.

4. The organ of taste is the tongue.

5. The organs of sight are the eyes.

6. The organ of smell is the nose.

7. The organs of hearing are the ears.

8. Our senses work together with our
nervous system.

9. The nervous system is made up by
the brain, spinal cord and nerves.
brain spinal cord
nerves

10. The brain receives messages from
the 5 senses and gives instructions.
messages instructions

11. There are nerves all over our body.