Question

The statement it controls the diameter of the pupil is.

Answer 1

Iris

Step-by-step explanation:

Muscles in your iris control how big the pupil is. Usually, this happens as a result of how much light is available. This makes the pupil an important part of your vision system. When you’re in bright light, your pupil constricts and gets smaller. When the light is dim, your pupil dilates and gets bigger.

Answer 2

True for both the parasympathetic and sympathetic nervous systems.

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