Topic 1-4 muscle actions Flashcards
1
Q
Pectoralis major
A
- Flexing shoulder
- adducting shoulder
- medially rotate shoulder
- extending shoulder
2
Q
Latissimus dorsi
A
- adducting shoulder
- extending shoulder (of a flexed arm)
- medially rotate shoulder
3
Q
trapezius
A
- Retracting pectoral girdle
- Elevating pectoral girdle (upper fibres)
- Depressing pectoral girdle
- Laterally rotating pectoral girdle
4
Q
rhomboid major
A
- Retracting pectoral girdle
- Medially rotating pectoral girdle
5
Q
rhomboid minor
A
- Retracting pectoral girdle
- Medially rotating pectoral girdle
6
Q
levator scapulae
A
- Elevating pectoral girdle
- Medially rotating pectoral girdle
7
Q
pectoralis minor
A
- protracting pectoral girdle
- Depressing pectoral girdle
- Medially rotating pectoral girdle
8
Q
serratus anterior
A
- protracting pectoral girdle
- Laterally rotating shoulder girdle
9
Q
deltoid
A
- (main) abducting shoulder (middle fibres)
- Flexing shoulder (anterior fibres)
- extending shoulder (posterior fibres)
- medially rotate shoulder (anterior fibres)
- laterally rotating shoulder (posterior fibres)
10
Q
coracobrachialis
A
- adducting shoulder
- Flexing shoulder (very weak)
11
Q
Teres Major
A
- adducting shoulder
- extending shoulder (from a flexed arm)
medially rotate shoulder
12
Q
Teres Minor
A
laterally rotating shoulder
13
Q
subscapularis
A
- medially rotate shoulder
may assist in adduction of shoulder.
14
Q
supraspinatus
A
abducting shoulder
15
Q
Infraspinatus
A
- laterally rotating shoulder
16
Q
biceps brachii short head long head
A
- Flexing shoulder
- Flexing elbow
- forearm supination
17
Q
triceps brachii
A
- long head can extending shoulder and adduct shoulder
extending elbow
18
Q
brachialis
A
Flexing elbow (main one)
19
Q
brachioradialis
A
- Flexing elbow
- forearm supination
- Forearm pronation
20
Q
anconeus
A
- extending elbow
21
Q
pronator teres
A
- Flexing elbow
- Forearm pronation
22
Q
pronator quadratus
A
- Forearm pronation
23
Q
supinator
A
forearm supination
