Wednesday, May 12, 2010

SENSORY ORGANS

We have five sensory organs in our body. Their are;
  1. Eyes
  2. Nose
  3. Ears
  4. Tongue
  5. Skin

The changes detected in the surrounding are called stimuli. For example, eyes detect light from lamp. Therefore, light is referred to as stimuli. Each sensory organ has special structures that are very sensitive to stimuli. These structures are called receptors.

PATHWAY OF AN IMPULSES FROM THE SENSORY ORGAN TO THE BRAIN

Sensory organs > Receptors> Nerves > Brain > Nerves > Muscle > Response

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