Which of the following BEST describes what alveoli are?A.They are the smallest tubes in the respiratory system.B.They have a small amount of surface area. C.They are found on the end of bronchioles.D.They are comprised of millions of cells.
In regard to exercise, which of the following statements about safety consideration is correct?A.In hot weather, exercising between 10 a.m. and 4 p.m. is best. B.Exercising at 100% of your maximum heart rate is best.C.Exercising one hour before eating is best. D.Remaining well-hydrated while exercising is best.
The cardiovascular system helps move hormones throughout the body during exercise.
When it comes to cholesterol, it is better to have __________.A.more cholesterolB.more LDLC.a high ratio of LDL to HDLD.more HDL
Making it a point to work out with a friend is an example of a fitness goal.
What is the impact of arteriosclerosis?A.inefficient blood flowB.increased artery elasticityC.arterial plaque depositionD.reduced blood clotting
White blood cells prevent the loss of blood by causing clotting. Please select the best answer from the choices provided.
The muscular and cardiovascular systems can both be overloaded during exercise.
As exercise levels increase, which of the following physiological changes occurs in the respiratory system? A. The respiratory muscles shrink. B. The lungs expand in size. C. The trachea widens. D. The airways narrow. Please select the best answer from the choices provided.
The most important step for preventing cardiovascular disease is to live a healthy lifestyle.
Which of the following is the most important reason to maintain a high level of cardiovascular health? A. A higher level of fitness makes it easier to develop larger muscles. B. A higher level of fitness makes you more attractive to other people. C. A higher level of fitness allows you to live a longer, healthier life. D. A higher level of fitness improves your IQ. Please select the best answer from the choices provided.
Which of the following is the BEST reason to rest muscle groups between workouts?A.It allows the muscles to store more energy.B.It allows you to focus on other muscle groups.C.It allows the muscles time to heal.D.It allows the muscles to properly overload.
What distinguishes atherosclerosis from arteriosclerosis?A.Arteriosclerosis can lead to blood clots.B.Atherosclerosis is characterized by plaque buildup.C.Arteriosclerosis results in inefficient blood flow.D.Atherosclerosis is a general term for artery hardening.
It is possible to improve cardiovascular fitness without increasing respiratory fitness.
For a typical person who leads a sedentary lifestyle, a typical maximum oxygen intake level would be __________.A.20 ml/kg/minB.35 ml/kg/minC.50 ml/kg/minD.70 ml/kg/min
Which of the following BEST describes cardiovascular fitness?A.the ability of the body to do prolonged workB.the ability of the body to transport oxygenated blood efficientlyC.the ability of the body to quickly shed fatD.the ability of the body to convert sugar into energy
As people age, they become unable to control their cardiorespiratory fitness levels.
The failure to deliver blood to the heart due to a narrowing of arteries results in __________. A. atherosclerosis B. a stroke C. coronary heart disease D. hypertension Please select the best answer from the choices provided.
Which of the following is NOT true about experiencing pain during exercise? A.The motto "no pain, no gain" can be dangerous.B.You should stop exercising if you feel dizzy or are unable to breathe.C.You should jog around to stabilize any pain during exercise.D.You should not feel pain during cardiovascular exercise.
What's the first step one should take when determining the amount of overload to include in an exercise program? A. consulting the Internet for exercise plans B. asking around at a local gym C. assessing your current level of fitness D. asking a health-conscious friend Please select the best answer from the choices provided.
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