Physical Activity Can Delay Some of the Physical Changes That

question 6

Multiple Choice

Physical activity can delay some of the physical changes that occur with advancing age by:

• A)improving oxygenation of tissues.
• B)decreasing circulation.
• C)moving nutrients away from cells.
• D)decreasing hydration.

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Definitions:

Hyposecretion

Abnormally reduced output of a secreted material. Compare with hypersecretion.

Growth Hormone

A hormone produced by the pituitary gland that stimulates growth, cell reproduction, and cell regeneration in humans and other animals.

Thyroxine

A substance created by the thyroid gland responsible for controlling metabolism, the production of energy, and the processes of growth and development.

Prolactin

Hormone secreted by the pituitary gland that stimulates cells of the mammary glands to produce milk in a nursing mother. Helps maintain water and electrolyte balance in fishes and amphibians. Inhibits metamorphosis in amphibians and stimulates molting in reptiles. Has a role in immune function and in the formation of new blood vessels.