#1
Which of the following is a primary function of the skeletal system?
Providing structure and support
ExplanationSupporting body structure and providing framework.
#2
What is the function of the pulmonary system during exercise?
To exchange oxygen and carbon dioxide
ExplanationFacilitating gas exchange between lungs and blood.
#3
What is the purpose of the cardiovascular system during exercise?
To provide oxygen and nutrients to tissues
ExplanationTransporting oxygen and nutrients to cells for energy production.
#4
Which of the following statements about flexibility training is true?
It improves joint range of motion
ExplanationEnhancing the ability of joints to move through their full range of motion.
#5
What is the function of the respiratory system during exercise?
To exchange oxygen and carbon dioxide
ExplanationFacilitating gas exchange to supply oxygen and remove carbon dioxide.
#6
Which of the following is a function of the integumentary system during exercise?
Regulating body temperature
ExplanationControlling body temperature through sweating and blood flow regulation.
#7
During exercise, which muscle type primarily utilizes anaerobic metabolism?
Type IIb muscle fibers
ExplanationFast-twitch fibers utilizing anaerobic metabolism for quick bursts of energy.
#8
Which of the following hormones is released in response to stress and aids in preparing the body for physical activity?
Cortisol
ExplanationCortisol assists in mobilizing energy resources during stress.
#9
Which of the following is NOT a component of the central nervous system?
Peripheral nerves
ExplanationPeripheral nerves are part of the peripheral nervous system.
#10
Which of the following is a function of the lymphatic system?
Removing excess interstitial fluid
ExplanationMaintaining fluid balance by removing excess fluid from tissues.
#11
Which of the following is a characteristic of slow-twitch (Type I) muscle fibers?
Rich in mitochondria
ExplanationContaining high concentrations of mitochondria for sustained aerobic activity.
#12
What is the primary function of the endocrine system in exercise physiology?
To regulate metabolism and energy balance
ExplanationMaintaining metabolic homeostasis and energy distribution.
#13
What is the role of ATP in muscle contraction?
To provide energy for muscle contraction
ExplanationATP serves as the immediate energy source for muscle contractions.
#14
What is the role of glycogen in muscle physiology?
To provide energy for muscle contraction
ExplanationGlycogen serves as a stored form of glucose for energy production.