Chapter 4.9 (page 40)

Question 1

What is the term used to call the shrinkage of muscles due to prolonged inactivity?

Answer 1

Disuse Atrophy

Question 2

When used actively, muscles may increase in size or strength and become more efficient and fatigue resistant, what is the increase in muscle size called?

Answer 2

Hypertrophy

Question 3

________________ results in several recognizable changes in skeletal muscles including an increased number of blood vessels and also, an increased number of mitochondria in the muscle fibres.

Answer 3

Endurance Training