Chapter 10 (Muscular Tissue XII)

Question 1

Distribution and Recruitment of Different Types of Fibers

Answer 1

Most muscles are a mixture of all three types of muscle fibers
Proportions vary, depending on the action of the muscle, the person ’s training regimen, and genetic factors

Question 2

Postural muscles of the neck, back, and legs have

Answer 2

A high proportion of SO fibers

Question 3

Muscles of the shoulders and arms have

Answer 3

A high proportion of FG fibers

Question 4

Leg muscles have

Answer 4

Large numbers of both SO and FOG fibers

Question 5

Ratios of fast glycolytic and slow oxidative fibers

Answer 5

Are genetically determined

Question 6

Which individuals excel in intense activity (weight lifting, sprinting) ?

Answer 6

Individuals with a higher proportion of FG fibers

Question 7

Which individuals excel in endurance activities (long-distance running)

Answer 7

Individuals with higher percentages of SO fibers

Question 8

Various types of exercises can induce changes in muscle fibers

Answer 8

Aerobic exercise and exercises that require short bursts of strength

Question 9

Aerobic exercise

Answer 9

Transforms some FG fibers into FOG fibers

Question 10

Exercises that require short bursts of strength

Answer 10

Produce an increase in the size of FG fibers