Which one of the following vitamins is fat soluble, can be stored, and has the potential to be toxic?

A) Vitamin A
B) Niacin (B3)
C) Riboflavin (B2)
D) Vitamin C


Answer: A

Anatomy & Physiology

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The heart lies in the ________ cavity.

A) superior mediastinal B) pleural C) dorsal D) pericardial

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Stereoscopic vision results when the

A) images in the eyes are different. B) brain interprets the images in two dimensions. C) rods of one eye are stimulated and the cones of the other eye are stimulated. D) images in both eyes are identical.

Anatomy & Physiology

Which of the following structures normally controls the amount of light entering the eye?

a. ciliary muscle. b. suspensory ligaments. c. iris. d. cornea. e. lens.

Anatomy & Physiology

What is the eye's blind spot?

A) macula B) fovea centralis C) neural layer of the retina D) optic disc E) lens

Anatomy & Physiology