During an Intense Game of Volleyball,Shay Slipped and Banged Her

question 21

Multiple Choice

During an intense game of volleyball,Shay slipped and banged her knee on the floor."Ouch!" she cried,as she wishes her brain would produce more ____.

• A) GABA
• B) endorphins
• C) dopamine
• D) acetylcholine

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Definitions:

Melanocytes

Cells located in the lower layer of the skin's epidermis and in the hair follicles, responsible for producing the pigment melanin, which colors the skin, hair, and eyes.

Vitiligo

A condition in which the skin loses its pigment cells, resulting in discolored patches.

Papillary Layer

The upper layer of the dermis that contains blood capillaries, sensory neurons, and the bases of the hair follicles.

Dermis

The dermis is the thick layer of living tissue below the epidermis that forms the true skin, containing blood capillaries, nerve endings, sweat glands, hair follicles, and other structures.