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What Structure Is Avascular, External, and Its Function Is to Refract

question 36

Multiple Choice

What structure is avascular, external, and its function is to refract light rays?


Definitions:

Cardiovascular Disease

A broad term for disorders and diseases that affect the heart and blood vessels, leading to an increased risk of heart attack and stroke.

Fatigue

A state of tiredness or exhaustion resulting from physical or mental exertion, which can diminish capacity for work and efficiency.

Palpitations

The feeling that one's heart is beating too hard or too fast, skipping a beat, or fluttering.

Cholesterol

A lipid molecule synthesized in the liver or ingested from diet, essential for all animal life, but high levels are linked to cardiovascular diseases.

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