Muscular System

Question 1

What is an agonist?

Answer 1

The muscle that contracts

Question 2

What is an antagonist?

Answer 2

Muscle that relaxes & allows agonist to contract

Question 3

What is a synergistic?

Answer 3

Muscles that help the agonist

Question 4

What is a fixator?

Answer 4

Muscles that hold body in fixed position to allow movement to occur elsewhere

Question 5

What are the 3 main types of muscle contacts?

Answer 5

Isotonic
Isometric
Isokinetic

Question 6

What are the two types of isotonic contractions?

Answer 6

Concentric

Eccentric

Question 7

What happens during a concentric contraction?

Answer 7

Muscle shortens under tension

Question 8

What happens during an eccentric contraction?

Answer 8

Muscle lengthens under tension

Question 9

What is an isokinetic contraction?

Answer 9

When muscle performs an isotonic contraction at a fixed speed throughout the entire contraction

Question 10

What are the 3 types of muscles fibres?

Answer 10

Slow twitch/slow oxidative glycolytic/type |
Fast twitch/fast oxidative glycolytic/type IIa
Fast twitch/fast glycolytic/type IIb

Question 11

What are Type I muscle fibres for?

Answer 11

Best used for endurance

Question 12

What are Type IIa fibres for?

Answer 12

Ideal for speed endurance

Question 13

What are Type IIb fibres for?

Answer 13

Built for speed and power

Question 14

Which muscle fibre has highest mitochondria density?

Answer 14

Type I

Question 15

Which fibre has the best blood supply?

Answer 15

Type I

Question 16

Which fibre has lowest resistance to fatigue?

Answer 16

Type IIb

Question 17

Which fibre has the highest speed of contraction?

Answer 17

Type IIb

Question 18

What type of training helps develop type I + type IIa muscle fibres?

Answer 18

Aerobic training

Question 19

Which type of training helps develop type IIb muscle fibres?

Answer 19

Anaerobic training