Biology Quiz: Neurons, Ear, and Eye

What is the function of sensory neurons?

• Transmit sensory information to the CNS

• Receive signals from other neurons or sensory receptors

• Act as intermediaries within the CNS

• Transmit signals from the CNS to muscles or glands

Where are interneurons typically found?

• In the middle ear

• In the inner ear

• In the CNS

• In the outer ear

What is the function of the axon terminal?

• Contains the nucleus and organelles

• Receives signals from other neurons

• Transmits electrical impulses away from the cell body

• Releases neurotransmitters to signal the next neuron or target cell

What is the function of the eustachian tube in the middle ear?

• Equalizes air pressure on both sides of the eardrum

• Transmits sound waves from the pinna to the eardrum

• Regulates the amount of light entering the eye

• Amplifies and transmits vibrations from the eardrum to the oval window

Where is the cochlea located?

• In the eye

• In the outer ear

• In the middle ear

• In the inner ear

What is the function of the iris in the eye?

• Regulates the amount of light entering the eye

• Converts light into electrical signals

• Provides structural support for the eye

• Transmits electrical signals to the brain

What is the function of the lens in the eye?

• Supports the retina

• Focuses light onto the retina by adjusting its shape through accommodation

• Provides nutrients to the cornea and lens

• Maintains the shape of the eye

What is the function of the vitreous humor in the eye?

• Helps maintain the pressure inside the eye

• Maintains the shape of the eye

• Provides nutrients to the cornea and lens

• Converts light into electrical signals

What is the function of the auditory nerve?

• Detects linear acceleration and head position

• Transmits electrical signals generated in the cochlea to the brain for interpretation as sound

• Regulates the amount of light entering the eye

• Equalizes air pressure on both sides of the eardrum

What is the function of the pinna in the outer ear?

• Contains photoreceptor cells that convert light into electrical signals

• Vibrates in response to sound waves

• Transmits sound waves from the pinna to the eardrum

• Collects and directs sound waves into the ear canal