Unit 4

Question 1

What is aerobic activity?

Answer 1

Continuous activity that requires large amounts of energy
( “with oxygen “)

Question 2

Lifestyle Diseases that affect the respiratory and circulatory system?

Answer 2

Inactivity , being overweight , smoking and using other forms of tobacco, eating foods high in fat and cholesterol.

Question 3

What is a stroke?

Answer 3

When the blood flow to a person’s brain is interrupted or cut off entirely by the blockage of an artery.

Question 4

What causes a heart attack?

Answer 4

A blockage of a blood vessel that feeds the heart muscle.

Question 5

What is muscular endurance?

Answer 5

The ability of the same muscle or muscle group to contract for an extended period of time without undue fatigue.

Question 6

How do slow and fast twitch muscle fibers play a role in your CRE?

Answer 6

Slow twitch muscle fiber enables endurance activities like running and fast twitch muscle fiber are for activities that require power or strength.

Question 7

What is anaerobic activity?

Answer 7

activity that requires high levels of energy and is done for only a few seconds or minutes at a high level of intensity.( “without oxygen”)