the eye

Question 1

What happens to the pupil in bright light?

Answer 1

1. Light receptors detect bright light.
2. A reflex is triggered making the pupil smaller.
3. Circular muscles in the iris contract.
4. Radial muscles relax, reducing light entry.

Question 2

What occurs in dim light regarding the pupil?

Answer 2

1. Radial muscles contract.
2. Circular muscles relax.
3. The pupil widens to allow more light in.

Question 3

accommodation

Answer 3

the process of changing the shape of the lens to focus on near or distant objects