Radioactive Elements

question 42

Multiple Choice

Radioactive elements

• A)have excess energy in their nuclei
• B)emit particles and energy
• C)are trying to become stable elements
• D)all of the above

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Definitions:

Skeletal Muscle

A type of striated muscle tissue which is attached to bones and is responsible for initiating and controlling voluntary movements.

Contraction

Contraction is the process of muscle fibers tightening or shortening, typically resulting in movement or the application of force.

Urinary Bladder

A muscular chamber that holds urine prior to its expulsion from the body.

Vasoconstriction

The narrowing of blood vessels, which increases blood pressure and decreases blood flow to certain areas.