Origins of Upper Extremity Muscles Flashcards
1
Q
Pectoralis Major Origin
A
- Medial half of clavicle
- Manubrium
- Body of sternum
- Cartilage of first 6-7 ribs
2
Q
Pectoralis Minor Origin
A
Ribs 2-5
3
Q
Serratus Anterior origin
A
Ribs 1-8
4
Q
Trapezius origin
A
- Superior nuchal line
- External occipital protuberance
- Ligamentum Nuchae
- Spinous processes and supraspinous ligaments of C7
- All thoracic vertebrae
5
Q
Rhomboid major and minor origin
A
- Ligamentous nuchae
- Spinous processes of C7 to T5
6
Q
Levator Scapulae origin
A
Transverse processes of C1-C4
7
Q
Sternocleidomastoid origin
A
- Manubrium
- Medial portion of clavicle
8
Q
Latissimus Dorsi origin
A
- Spinous processes of 7-12 thoracic vertebrae
- Fascia from the lumbar and sacral vertebrae
- Last 3 to 4 ribs
- Inferior angle of scapula
9
Q
Anterior deltoid origin
A
Lateral end of clavicle
10
Q
Middle deltoid origin
A
Acromion
11
Q
Posterior deltoid origin
A
Spine of scapula
12
Q
Teres major origin
A
Inferior angle of scapula
13
Q
Coracobrachialis origin
A
Coracoid process of scapula
14
Q
Subscapularis origin
A
Subscapular fossa of scapula
15
Q
Supraspinatus origin
A
Supraspinatus fossa of scapula
