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 relax.

Her pupils grow because the muscles relax.

Her pupils grow because the muscles contract.

Her pupils shrink because the muscles contract.

Her pupils grow because when she opens her eyes, her brain sends a signal to the muscles in her iris to contract, allowing more light to enter her eyes. This is known as the pupillary light reflex.