Soc 14 Flashcards
What are voluntary muscles
Under your control, you can choose when to relax or contract them
What are voluntary muscles made up of
Made up pf cylinder shaped fibres and are usually long and thin but get shorter and fatter when contracted
What is the cardiac muscle
The heart
What are antagaonistic pairs
Two muscles that work together
What are muscle fibres
Hold muscles together
What is type I
Slow twitch muscle fibres
What is type IIa
Fast twitch muscle fibres used in anaerobic work
What is type IIx
Fast twitch muscle fibres used in anaerobic work to generate power
What is Myoglobin
Red pigment that transports oxygen to the muscles
Slow twitch ( type 1 )
Suit endurance activities, long periods of time
Fast twitch ( type II )
Type 2 a is used in anaerobic work that can generate more power
Fast twitch ( type II )
Type IIx is used in anaerobic work that can generate more power aswell as speed
