Chapter 5 Muscular Development

Question 1

Resistance training

Answer 1

Refers to lifting weights of varying intensities in order to develop increased muscular strength

Question 2

Hypertrophy

Answer 2

Means muscle enlargement

Question 3

Atrophy

Answer 3

Muscle wasting

Question 4

Resting metabolic rate

Answer 4

The rate at which the body burns calories when completely inactive, is affected by the amount of lean body mass (muscle) a person has

Question 5

Bone Matrix

Answer 5

Collagen, calcium, and other minerals

Question 6

Osteoclasts

Answer 6

Cells that break down bone matrix and release minerals, such as calcium, into the blood

Question 7

Osteoblasts

Answer 7

Rebuild the bone matrix

Question 8

Functional Capacity

Answer 8

The ability to do physical work

Question 9

Cardiac Muscle

Answer 9

Found only in the heart and is specialized to produce the powerful contractions that pump blood throughout the body. They are not under voluntary control but instead are controlled automatically by the nervous system

Question 10

Smooth muscle

Answer 10

The other type of involuntary muscle and is located in digestive organs, blood vessels, and reproductive organs

Question 11

Skeletal muscle

Answer 11

The third type of muscle, mainly under voluntary control, and is responsible for helping us move according to our will

Question 12

Sarcomere

Answer 12

A muscle cell

Question 13

Myosin

Answer 13

The thick filament made up of protein, has extensions called heads that attach to the thin filament

Question 14

Actin

Answer 14

Thick extensions called heads taht attach to the thin filament, protein

Question 15

Myofibrils

Answer 15

Muscle fibers are made up of strands called ^

Question 16

Fascia

Answer 16

Whole groups of muscle fibers that are covered by a connectgive tissue sheath make up a muscle

Question 17

Motor unit

Answer 17

The motor neuron and muscle fibers it activates are called. Allow precise, delicate movements, such as swiveling the eyeballs

Question 18

Isometric

Answer 18

Equal length the combination of the Greek terms iso (same) and metric (distance).

Question 19

Isokinetic

Answer 19

Means “equal motion”. Kinetic refers to movement. The ate of muscular contraction is constant in isokinetic exercise

Question 20

Isotonic

Answer 20

Means “equal tension” where force remains constant

Question 21

Variable-resistance

Answer 21

Change the resistance to compensate for changes in mechanical advatnige