Sensory Organs

Front

What is the function of the iris in the eye?

Back

The iris opens and closes to adjust the total amount of light entering the eye.

Front

What role do ciliary muscles play in the eye?

Back

Ciliary muscles hold the lens in place and help in focusing.

Front

What is the pupil and its function?

Back

The pupil is the opening in the center of the iris that allows light to enter the eye.

Front

What is vitreous humor and where is it located?

Back

Vitreous humor is a gel-like substance located in the eye that helps maintain its shape.

Front

What is the Eustachian tube and its purpose?

Back

The Eustachian tube connects the middle ear to the throat and helps equalize pressure.

Front

What are the main parts of the eye involved in vision?

Back

The main parts include the cornea, lens, retina, iris, and pupil.

Front

How does the cornea contribute to vision?

Back

The cornea refracts light as it enters the eye, helping to focus it on the retina.

Front

What is the role of the retina in the eye?

Back

The retina contains photoreceptor cells that convert light into electrical signals for the brain.

Front

What is the difference between rods and cones in the retina?

Back

Rods are responsible for vision in low light, while cones are responsible for color vision and detail.

Front

What is the function of the optic nerve?

Back

The optic nerve transmits visual information from the retina to the brain.