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
A. Her pupils shrink because the muscles relax.
B. Her pupils shrink because the muscles contract.
C. Her pupils grow because the muscles relax.
D. Her pupils grow because the muscles contract.
B. Her pupils shrink because the muscles contract.
When the girl opens her eyes in a brightly lit room, the iris muscles contract to reduce the size of the pupils in order to allow less light to enter the eye and prevent too much light from reaching the retina. This process is known as the pupillary light reflex.