Field Studies Suggest That Living and Exercising at High Altitude

question 1

Multiple Choice

Field studies suggest that living and exercising at high altitude

• A)does not influence immune function.
• B)improves immune function by increasing killer cells.
• C)improves immune function by increasing the levels of circulating antibodies.
• D)depresses immune function and increases the risk of upper respiratory tract infection.

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Definitions:

Arrector Pili Muscles

Small muscles connected to hair follicles that, when contracted, cause hair to stand on end, known as "goosebumps."

Ultraviolet Light Rays

A form of electromagnetic radiation with a wavelength shorter than that of visible light, known for its ability to induce suntans and sunburn.

Subcutaneous Tissue

A layer of tissue that lies underneath the dermis of the skin, consisting of fat and connective tissues that house larger blood vessels and nerves.

Sebaceous Glands

Glands located in the skin that secrete an oily substance called sebum, involved in lubricating skin and hair.