Physical Fitness Unit 2 Quiz 2

the cells that make up a muscle

muscle fibers

activities that improve the health of the heart, lungs, muscles, and joints of a person

exercise

improves the health of the muscles

stretching

Muscle fibers move back and forth during _____.

exercise

(Match the phrase with the correct benefit of stretching) better mood

improved ability to relax

(Match the phrase with the correct benefit of stretching) lowers blood pressure

improved ability to relax

(Match the phrase with the correct benefit of stretching) fewer leg cramps

improved circulation

(Match the phrase with the correct benefit of stretching) warmer feet

improved circulation

(Match the phrase with the correct benefit of stretching) less back pain

improved posture

(Match the phrase with the correct benefit of stretching) stronger pairs of muscles

improved posture

If stretching is done during the cool-down, it can help the muscle _____.

increase flexibility

Why is stretching considered exercise?

increases blood flow to the muscles, helps heal the muscles, lengthens the myofibrils

(True or False) Flexibility activities should be recorded in your activity log.

True

(True or False) Stretching can help lower blood sugar levels.

True

pairs of muscles that move parts of the body in opposite directions

antagonistic muscles

(Match the phrase with the correct benefit of stretching) greater range of motion

decreased joint stiffness

(Match the phrase with the correct benefit of stretching) less pain with movement

decreased joint stiffness

a by-product produced in the muscles during exercise

lactic acid

removed by the blood

lactic acid

What are the benefits of stretching?

makes you stand straighter, prevent leg cramps, helps you sleep better

cells in the muscles

muscle fibers

small sections in a muscle cell that move when a muscle is being used

muscle myofibrils

can be damaged during exercise

myofibrils

Antagonistic muscles move a body part in _____.

opposite directions

the way you hold your body when you stand or sit

posture

how far a body part can move in any direction

range of motion

how far in any direction a part of the body is able to move

range of motion

injury and shortening of the myofibrils

scarring

Stretching can help prevent _____.

varicose veins

veins in the body, usually the legs, which have been stretched out of shape and do not move blood through the body effectively anymore

varicose veins