Soc 14: Muscles Flashcards
1
Q
What moves the arm in all directions
A
Deltoid
2
Q
What adducts the arm at the shoulder?
A
Pectoralis major
3
Q
What extends arm at shoulder?
A
Latissimus dorsi (back)
4
Q
What flexes the arm at the elbow?
A
Bicep
5
Q
What extends arm at elbow?
A
Tricep
6
Q
What rotates the spinal column?
A
External obliques
7
Q
What adducts and extends legs at hips
A
Gluteals
8
Q
What helps movement of knee to body
A
Hip flexors
9
Q
What extends leg at knee?
A
Quadraceps
10
Q
What flexes leg at knee
A
Hamstring
11
Q
What points the toes?
A
Gastrocnemius
12
Q
What pulls toes towards the shin?
A
Tibialis anterior
13
Q
Muscle fibres
A
Make up voluntary muscles, there is type I, typeIIa and type IIx.
14
Q
Type 1
A
Slow twich muscle fibres are suited to low intensity work for longer periods of time.
15
Q
Type IIa
A
Fast twitch muscle fibres are used in anaerobic exercise.
