Which Is Not Correct About the Vascular Tunic of the Eye

question 79

Multiple Choice

Which is not correct about the vascular tunic of the eye?

• A)The choroid is the most extensive and posterior region of the vascular tunic.
• B)Melanin pigment granules in the choroid absorb extraneous light.
• C)The ciliary body epithelium secretes aqueous humor.
• D)Relaxation and contraction of ciliary muscles alter the shape of the lens.
• E)The iris is composed of two groups of skeletal muscle fibers.

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Definitions:

Ovum

A female reproductive cell or egg, which, when fertilized by a sperm, begins the process of embryonic development.

Nourishment

The substances necessary for growth, health, and good condition, typically obtained from food.

Blastocyst

An early stage of embryonic development characterized by a sphere of cells surrounding a fluid-filled cavity, shortly before implantation in the uterus.

Placenta

An organ that develops in the uterus during pregnancy, providing oxygen and nutrients to the growing baby and removing waste products from the baby's blood.