found in the internal organs and blood vessels - this is involuntary
1 of 19
what is cardiac muscle
found only in the heart - this is involuntary- a high proportion of mitochondria
2 of 19
what is skeletal muscle
attached to the skeleton - this is voluntary
3 of 19
what is the agonist
The muscle that creates the force
Prime mover
4 of 19
what is the antagonist
The muscle that is on the opposite side of the antagonist
Relaxer
5 of 19
what is the synergist
Help the agonist
the muscle(s) that stabilises a joint around which movement is occurring
6 of 19
what is the fixator
The muscle that holds the joint in place to allow movement to happen
7 of 19
what is a isometric contraction
muscle tenses
stays the same length
joint angle stays the same
8 of 19
what is a concentric contraction
Muscle shortens under tension
Origin and insertion move closer
9 of 19
what is a eccentric contraction
Muscles lengths under tension
Due to gravity
10 of 19
what are the responses to exercise
Muscles become more pliable and more stretchy as muscle temperature increases
Increase in blood supply to the muscles= more O2=more energy
The build-up of lactic acid
11 of 19
what is the aerobic adaptations to exercise
More mitochondria means more energy
Increase in Myoglobin which transports oxygen in the muscle Store and use more fuel for example carbohydrates and better fats
12 of 19
what is the anaerobic adaptations to exercise
Increase strength and size (hypertrophy)
Tendons strength increases
Increase energy
stores
Increase lactic acid tolerance
13 of 19
describe what happens in the upward phase of a press up
Muscles become more pliable and stretcher as muscle temperature increases
Increase in blood supply to the muscles= more O2=more energy
The build-up of lactic acid
Muscle micro fibre tear
16 of 19
what is the all or nothing law
Once the brain sends an electrical input has been sent, every muscle fibre at the end of that neuron contracts
17 of 19
what are the different type of muscle fibres
type 1, 2A and 2X
18 of 19
additional factors that affect muscles
Increased age = reduced muscle mass
cramp-involuntary muscle spasm
19 of 19
Other cards in this set
Card 2
Front
what is cardiac muscle
Back
found only in the heart - this is involuntary- a high proportion of mitochondria
Comments
No comments have yet been made