Human Sensory Systems and Functions

What role do specialized nerves play in our sense of smell?

• They interpret visual signals.

• They amplify sound vibrations.

• They detect chemicals in the air.

• They focus light onto the retina.

What happens when sound waves reach the eardrum?

• They are converted into electrical signals.

• They are detected by rods and cones.

• They are absorbed by the retina.

• They cause the eardrum to vibrate.

How do the tiny bones in the ear assist in hearing?

• They amplify vibrations from the eardrum.

• They detect chemicals in the air.

• They interpret visual signals.

• They focus light onto the retina.

What is the function of delicate hairs in the cochlea?

• They detect chemicals in the air.

• They vibrate in response to sound frequencies.

• They focus light onto the retina.

• They interpret visual signals.

What is a potential consequence of exposure to loud noises over time?

• Damage to the delicate hairs in the cochlea.

• Stronger eye muscles.

• Improved sense of smell.

• Enhanced color vision.

How is vision described in infants at one month old?

• Sensitive to high frequencies.

• Perfect and clear.

• Blurred and mostly black and white.

• Fully developed and colorful.

What is the role of the lens in the eye?

• To amplify sound vibrations.

• To detect chemicals in the air.

• To focus light onto the retina.

• To interpret visual signals.

What types of cells are found in the retina?

• Chemicals and signals.

• Rods and cones.

• Hairs and bones.

• Nerves and muscles.

What is the primary function of rods in the retina?

• To focus light onto the retina.

• To detect light and dark.

• To detect color information.

• To amplify sound vibrations.

How does the brain process visual information from the retina?

• By focusing light onto the retina.

• By interpreting electrical signals.

• By detecting chemicals in the air.

• By amplifying sound vibrations.