Muscle Flashcards
1
Q
Tears occur most commonly?
A
Myotendinous junction
2
Q
Epimysium surrounds?
A
Muscle bundles
3
Q
Endomysium surrounds?
A
Individual fibres
4
Q
Perimysium surrounds?
A
Muscle fascicles
5
Q
H zone composed of?
A
Myosin
6
Q
I band (Isotropic) composed of?
A
Actin only
7
Q
A band (Anisotropic) composed of?
A
Both Actin and Myosin fibres
8
Q
Z line?
A
Site of attachment of actin/I band
9
Q
3 changes during muscle contraction?
A
- A band stays same length
- I band shortens
- H zone reduces in length
10
Q
What are Plyometric contractions?
A
Rapid lengthening followed my contraction of muscle groups (ie box jumps)
11
Q
Force generated is dependant on?
A
Muscle cross sectional area
12
Q
Type 1 muscle is otherwise known as?
A
Slow twitch muscle fibres
13
Q
Type 1 muscle fibre features? (4)
A
- AEROBIC
- Endurance exercise
- Vascular
- Increased mitochondria
14
Q
Type 2 muscle fibres known as?
A
Fast twitch
15
Q
Type 2 fibre features? (4)
A
- ANAEROBIC
- ATP-CP system
- High speed/strength
- Rapid fatigue
