Soc14 Muscular System

Question 1

Involuntary muscles

Answer 1

Involuntary muscles
Involuntary muscles are not under our control. They contract
and relax automatically controlled by the involuntary nervous
system. They can be found in the digestive organs, circulatory
and urinary systems.

Question 2

Muscle fibres

Answer 2

Muscle tibres: make up voluntar
(skeletal muscle: divided into
type I, type lla and type lIx.

Question 3

Type 1

Answer 3

Type I: slow twitch muscle fibres;
suited to low intensity work, e.p
Tididthon running, as thev can
be used for a long period without
fatiguing

Question 4

Type 2a

Answer 4

Type lla: fast twitch muscle
adores used in anaerobic wor:can
be improved through endurance
training to increase their
resistance to fatigue

Question 5

Type 2x

Answer 5

Type Iix: fast twitch muscle
fibres used in anaerobic work
and can generate much greater
force than other fibre types, but
fatigue quickly.

Question 6

Myoglobin

Answer 6

Myoglobin: a red pigment that

transports oxygen to the muscles.

Question 7

Antagonistic pair

Answer 7

Antagonistic pair: muscles
that work together to create
movement.

Question 8

Voluntary muscles

Answer 8

Crucial when playing sport train them to be stronger and work for longer