Sensory Organs

The structures and functions of the named parts of the eye include the eyelids, which close and protect the eye, and the fatty tissue, which fills the spaces and cushions the eye against shock.

Sensory adaptation occurs when a stimulus is applied continuously or frequently to a sense organ, and its effects become reduced with time.

When food becomes moist, some of the chemical substances in the food dissolve in the saliva and reach the taste buds. When these chemicals stimulate the taste buds, impulses are sent along nerve fibers to the brain, where they are interpreted as taste.

<p>Chemicals in the air entering the nose dissolve in the mucus and are then able to stimulate the olfactory cells to send impulses to the brain, where they are interpreted as smell.</p> Signup and view all the answers

<p>The rods and cones in our eyes are responsible for detecting light. Rods are more sensitive to low light levels and are involved in peripheral vision, while cones are responsible for color vision and visual acuity in bright light.</p> Signup and view all the answers