Revision quiz 2

Identify a reason why minute volume changes and link exercise to an increase in a component of minute volume. Provide a detailed explanation.

• Exercise increases heart rate, leading to increased minute volume.

• Exercise increases tidal volume, leading to increased minute volume.

• Exercise decreases respiratory rate, leading to increased minute volume.

• Exercise decreases tidal volume, leading to increased minute volume.

Which of the following physiological effects helps during exercise by increasing oxygen delivery to the working muscles?

• Vasodilation of blood vessels to active muscles

• Vasoconstriction of blood vessels to the digestive system

• Relaxing the bronchioles

• All of the above

Aerobic training results in cardiac hypertrophy and increased thickness of the left ventricle wall because:

• it increases the heart rate permanently.

• it enhances the oxygen-carrying capacity of the blood.

• it leads to an increase in the size and strength of the heart muscle.

• it causes a decrease in blood pressure.

The impact of resistance training on bone strength and the skeletal system is:

• It decreases bone density and weakens the skeletal system.

• It has no effect on bone strength and the skeletal system.

• It increases bone density and strengthens the skeletal system.

• It only affects muscle strength, not bone strength.

Aerobic training increases stroke volume and reduces resting heart rate by:

• increasing the heart's efficiency and strength

• decreasing the heart's efficiency and strength

• increasing blood pressure

• decreasing blood volume

Resistance training plays a role in stimulating bone remodeling and increasing collagen content in cartilage. Which of the following best describes this role?

• It increases bone density and enhances cartilage flexibility.

• It decreases bone density and reduces cartilage flexibility.

• It has no effect on bone density or cartilage flexibility.

• It only affects muscle mass without impacting bones or cartilage.

Explain why resistance training will do little in comparison to aerobic training to develop Beth’s cardiovascular system. Use the information provided in the text.

• Resistance training primarily focuses on building muscle strength rather than cardiovascular endurance.

• Resistance training increases heart rate more significantly than aerobic training.

• Resistance training is more effective in improving lung capacity than aerobic training.

• Resistance training and aerobic training have the same impact on the cardiovascular system.

The increase in production of synovial fluid lubricates the joints, increasing the range of movement at the joint so she can achieve a better throwing technique. What is the advantage of this increase?

• Improved joint lubrication

• Decreased joint pain

• Increased muscle strength

• Enhanced bone density

The oxygen dissociation curve shifts to the right. What is the advantage of this shift?

• Oxygen is released more readily to the muscle

• Less oxygen is released to the muscle

• No change in oxygen release to the muscle

• Oxygen is absorbed more readily by the muscle

Which of the following is a factor that results in a shift in the oxygen dissociation curve?

• Temperature change

• Light intensity

• Sound frequency

• Magnetic field