1Biceps Brachii origin
short head - coracoid process
long head - supraglenoid tubercle
2Biceps Brachii insertion
tendon - radial tuberosity
bicipital aponeurosis - antebrachial fascia (medial side)
3Biceps Brachii action
both heads:
supination of forearm
flexion of elbow
short head:
flexion of shoulder
4Biceps Brachii nerve supply
musculocutaneous nerve
5Coracobrachialis origin
coracoid process
6Coracobrachialis insertion
middle of medial humerus
7Coracobrachialis action
flexion of shoulder
adduction of shoulder
8Coracobrachialis nerve supply
musculocutaneous nerve
9Brachialis origin
distal anterior humerus
10Brachialis insertion
ulnar tuberosity
coronoid process
11Brachialis action
flexion of elbow
12Brachialis nerve supply
musculocuntaneous nerve
13Triceps Brachii origin
Long head - infraglenoid tubercle
lateral head - posterior humerus above spiral groove
medial head - posterior humerus below spiral groove
14Triceps Brachii insertion
olecranon process
15Triceps Brachii action
all heads: extension of elbow
long head: extension of shoulder
16Triceps Brachii nerve supply
radial nerve
17Supraspinatus origin
supraspinous fossa
18Supraspinatus insertion
superior greater tubercle
19Supraspinatus action
abduction of shoulder
stabilizes glenohumoral joint
20Supraspinatus nerve supply
suprascapular nerve
21Infraspinatus origin
infraspinous fossa
22Infraspinatus insertion
middle greater tubercle
23Infraspinatus action
external rotation of shoulder
stabilizes glenohumeral joint
24Infraspinatus nerve supply
suprascapular nerve
25Teres Minor origin
superior axillary border
26Teres Minor insertion
inferior greater tubercle
27Teres Minor action
external rotation of shoulder
stabilizes glenohumeral joint
28Teres Minor nerve supply
axillary nerve
29Subscapularis origin
supscapular fossa
30Subscapularis insertion
lesser tubercle
31Subscapularis action
internal rotation of shoulder
stabilizes glenohumeral joint
32Subscapularis nerve supply
upper supscapular nerve
lower supscapular nerve
33Deltoid origin
anterior deltoid - lateral clavicle
middle deltoid - acromion
posterior deltoid - spine of scapula
34Deltoid insertion
deltoid tuberosity
35Deltoid action
anterior deltoid:
flexion of shoulder
horizontal adduction of shoulder
internal rotation of shoulder
middle deltoid:
abduction of shoulder
posterior deltoid:
extension of shoulder
horizontal abduction of shoulder
external rotation of shoulder
36Deltoid nerve supply
axillary nerve
37Teres major origin
inferior angle of scapula
inferior axillary border of scapula
38Teres major insertion
medial bicipital groove
39Teres major action
extension of shoulder
internal rotation of shoulder
adduction of shoulder
40Teres major nerve supply
lower subscapular nerve
41Brachioradialis origin
supracondylar ridge of humerus
42Brachioradialis insertion
styloid process of radius
43Brachioradialis action
flexion of elbow with forearm in neutral position
44Brachioradialis nerve supply
radial nerve