Period 1- Chapter 7&8 Review

The main organ of the circulatory system is the lungs.

• true

• false

When blood flow to a person's heart is cut off by a blocked artery, the person has suffered a stroke.

• true

• false

The diaphragm is

• part of the heart

• a muscle

• part of the circulatory system

• all of the above

Cross-country skiing is a low-impact aerobic sport.

• true

• false

The cardiorespiratory evaluation most likely to be done if a medical screening suggests a health problem is

• steady-state jog test.

• steady-state walk test.

• exercise stress test.

• Cooper's 1.5-mile run test.

Teens who are at least moderately active and

in good health are advised to work at

• between 60 and 90 percent of their esti-

  mated VO2 max.

• 45 percent of their target heart rate range

• 45 percent of their estimated VO2 max.

• between 60 and 90 percent of their target

  heart rate range.

The device used to measure the number of steps you take and estimate the distance yo walk is a

• pedometer

• heart-rate monitor.

• waist/hip pouch.

• elliptical motion trainer.

To achieve accurate results on an endurance test, you should avoid doing any exercise in the weeks leading up to the test.

• true

• false

Of the following, the intensity range recom- mended for beginners to cardiorespiratory conditioning is

• 100 to 110 beats per minute.

• 115 to 120 beats per minute.

• 120 to 145 beats per minute.

• 140 to 170 beats per minute.

Fast-twitch muscle fibers are associated with your ability to do anaerobic work.

• true

• false