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Central Nervous
"Senses"

Senses

There are five main senses - touch, smell, taste, hearing and sight. These are the external sensory system, because they tell you about the world outside your body. Your senses tell you what is happening in the outside world. Your body's sense organs constantly send signals about what is happening outside and inside it to your control center - the brain.

The cerebrum is part of the forebrain. The cerebral cortex is the outer layer of the cerebrum. Certain areas of the cerebral cortex are involved with certain functions.

Sensory areas such as touch, smell, taste, hearing and sight receive messages from the skin, nose, mouth, ears and eyes. We feel, taste, hear and see when these messages are received by the sensory parts of the brain.

Lizards are always flicking their tongues in and out. They "taste" the air and pass all the flavors back to a sense organ in the mouth.

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