Physical Activity Guidelines F Americans, Released in 2008, Advise a Minimum

question 34

Multiple Choice

Physical Activity Guidelines f Americans, released in 2008, advise a minimum of minutes per week of moderate-intensity physical activity f adults.

• A) 30
• B) 60
• C) 90
• D) 150

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Definitions:

Cardiac Muscle

A specialized form of striated muscle found in the heart, characterized by its ability to contract involuntarily and rhythmically, facilitating blood circulation.

Autorhythmic

Spontaneous and periodic—for example, in smooth muscle, spontaneous (without nervous or hormonal stimulation) and periodic contractions.

Cardiac Muscle

A type of involuntary striated muscle found exclusively in the heart, responsible for pumping blood throughout the body.

Skeletal Muscle

A type of striated muscle tissue that is attached to bones, enabling voluntary movement of the body through contraction and relaxation.