Soc 14 Flashcards
What is fulcrum
The point around which the lever rotates
Articulation
The state of having a joint; being a joint
What is articulate
Act as a joint
What are muscle fibres
Make up voluntary (skeletal) muscle; divided into type I, type IIa and type IIx
What is type I
slow twitch muscle fibres; suited to low intensity work, e.g. marathon running, as they can be used for a long period without fatiguing.
What is type IIa
fast twitch muscle fibres used in anaerobic work; can be improved through endurance training to increase their resistance to fatigue.
What is type Iix
fast twitch muscle fibres used in anaerobic work and can generate much greater force than other fibre types, but fatigue quickly.
What is myoglobin
a red pigment that transports oxygen to the muscles.
Voluntary muscle is made up of bundles of individual fibres. Each fibre contains many…
Myofibrills
What are coluntary muscles
Muscles undercontrol
What are invuluntary muscles
Muscles not under control
What are cardiac muscles
Only found in the wall of the heart
What is vascular
Relating to blood vessels
What is a antagonistic pair
Two muscles that work together (bicep and tricep) to create a movement
