Soc 14

Question 1

Muscle fibres

Answer 1

Make up voluntary (skeletal) muscle;divided into type 1, type 2a amd type 2x

Question 2

Type l

Answer 2

Slow twitch muscle fibres; suited to low intensity work, e.g. marathom running, as they can be used for a long period with fatiguing.

Question 3

Type lla

Answer 3

Fast twitch muscle fibres used in anaerobic work; can be improved through endurance training to increase their resistance to fatigue.