A freckle is a concentrated spot of this pigment

A) carotene B) keratin C) cyano D) melanin


Answer: D

Anatomy & Physiology

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Anatomy & Physiology

Atropine is an antagonist of ACh and works by

a. selectively binding to nicotinic receptors b. selectively binding to muscarinic receptors c. blocking the binding of ACh d. both a and b e. both b and c

Anatomy & Physiology

Cells that are thick in the middle and tapered toward the end are called __________ cells.

A. squamous B. stellate C. columnar D. spheroid E. fusiform

Anatomy & Physiology

The gastrocnemius inserts on the

A. tibia. B. calcaneus. C. femur. D. phalanges.

Anatomy & Physiology