A girl has her eyes shut and is standing inside a brightly lit room. What happens to her pupils when she opens her eyes? Why?(1 point)
Responses
Her pupils shrink because the muscles contract.
Her pupils shrink because the muscles contract.
Her pupils grow because the muscles relax.
Her pupils grow because the muscles relax.
Her pupils grow because the muscles contract.
Her pupils grow because the muscles contract.
Her pupils shrink because the muscles relax.
Her pupils shrink because the muscles contract.
When the girl opens her eyes in a brightly lit room, her pupils will shrink (or constrict) in order to reduce the amount of light entering the eye. This is a protective mechanism to prevent an overwhelming amount of light from damaging the sensitive cells in the retina. The muscles in the iris contract to reduce the size of the pupil, allowing in less light.