Muscle and fibre types

Question 1

3 main types of muscle?

Answer 1

• cardiac
• involuntary
• voluntary

Question 2

Cardiac muscle
where?
role?

Answer 2

in heart

delivery and removal

Question 3

Involuntary muscle
examples where?
examples roles?

Answer 3

• middle layer of blood vessels
• throughout digestive system
• digesting food
• expelling waste from body

Question 4

Voluntary muscle

examples where?

Answer 4

under your conscious control

• attach to bones via tendons
• triceps or biceps

Question 5

Contraction?

Answer 5

• Muscles shorten and pull when they contract

- Tension is created

Question 6

Musculo-skeletal system

Answer 6

Combined body system that involves muscles and skeleton

Question 7

Antagonistic muscle pair?

Answer 7

A pair of muscles that work together to produce movement

Question 8

Agonist?

Answer 8

The muscle within in the pair that contracts to pull on bone and produce movement

Question 9

Antagonist?

Answer 9

The muscle within the pair that relaxes to allow movement to occur

Question 10

type I of muscle fibre?

Answer 10

Slow twitch muscle fibre

Question 11

type IIa of muscle fibre?

Answer 11

Fast twitch muscle fibre

Question 12

type IIx of muscle fibre?

Answer 12

(very) fast twitch muscle fibre

Question 13

type I of muscle fibre

FUNCTION?

Answer 13

suited to low intensity aerobic work

eg: marathon running

Question 14

type IIa of muscle fibre

FUNCTION?

Answer 14

suited to lengthy anaerobic work

eg: 800m race

Question 15

type IIx of muscle fibre?

FUNCTION?

Answer 15

used in anaerobic work

eg: 100m sprint