Ch 11 Physical Fitness

What percentage of American adults meet exercise recommendations?

• 10%

• 25%

• 50%

• 75%

What do skeletal muscles provide?

• Digestion and absorption

• Circulation and respiration

• Shape, support, and movement

• Hormone regulation

What waste product leaves cells and enters the blood?

• Oxygen.

• Nitrogen.

• Carbon dioxide.

• Hydrogen.

What does the blood carry back to the lungs in the cardiorespiratory system?

• Oxygen

• Nutrients

• Carbon dioxide

• Hormones

How does physical activity affect the immune system?

• Weakens the immune system

• Has no effect on the immune system

• Improves the immune system

• Destroys the immune system

What impact does regular exercise have on the mental acuity of elderly individuals?

• Reduces mental sharpness

• Enhances mental sharpness

• Leaves mental sharpness unchanged

• Leads to mental deterioration

What is the term for the range of motion available at a joint?

• Muscular strength

• Flexibility

• Cardiorespiratory fitness

• Body composition

Which of the following is NOT an aerobic activity that can develop cardiorespiratory fitness?

• Running

• Swimming

• Rope skipping

• Weightlifting

Which of the following is a benefit of cardiorespiratory fitness?

• Improved oxygen supply to muscles

• Increased muscle size

• Enhanced memory

• Better skin health

Which method is essential for building muscle strength?

• Allowing muscles to rest

• Applying progressive overload

• Decreasing muscle engagement

• Performing muscle stretches