Five senses

Thanks to our nervous system, sense organs and locomotor system, we are able to interact with our environment.

• True

• False

SIGHT.

Light enters our eye through....

• Iris

• Retina

• Cornea and optic nerve

• Cornea and pupil

The iris controls the amount of light that enter our eye.

• False

• True

The ...................... sends the information to the brain.

• Pupil

• Optic nerve

• Cornea

• Retina

HEARING.

Sound waves enter our ear through the auditory canal and....

• the auditory nerve sends these signals to our brain.

• the three small bones vibrate.

• make the eardrum vibrate.

• and the image is projected into the retina.

The main function of the semicircular canals is transform vibrations into electrical signals.

• True

• False

Are the three small bones in our middle ear?

• Yes, they are.

• No, they aren´t .

SMELL.

Our sense of smell......

• the light enters our eye.

• keep our balance and equilibrium.

• detects chemicals in the air.

• detect different tastes (bitter, sour, salty and sweet).

TASTE.

The receptor cells for taste are on the tongue inside each taste bud.

• True

• False

TOUCH.

The middle layer of skin, called the dermis....

• send this information along the olfactory nerve to our brain.

• is a muscle that makes the pupil bigger or smaller

• contains nerves and tiny blood vessels