The Following Is a List of Structures in the Eye

question 107

Multiple Choice

The following is a list of structures in the eye through which light passes. Which one of the following answers best describes the order in which light passes through or hits each structure? 1. lens
2) pupil
3) cornea
4) aqueous humor
5) retina

• A) 5, 4, 2, 1, 3
• B) 3, 4, 2, 1, 5
• C) 3, 2, 4, 1, 5
• D) 3, 1, 2, 4, 5
• E) 3, 4, 5, 2, 1

---

Definitions:

Melatonin

A hormone produced by the pineal gland that regulates sleep and wakefulness.

Serotonin

A neurotransmitter that plays an important role in mood regulation, as well as in sleep, digestion, and other bodily functions.

Ria

A drowned river valley formed by the submergence of an unglaciated river valley, leading to a long, narrow, winding inlet.

Correct Meaning

The accurate interpretation or representation of a word, phrase, or concept.