1386Isfahan Medical Faculty,

Anatomical Sciences Department 1

The muscles of Shoulder girdle: Those attached to the Scapula

•There are 17 muscles attached to the scapula as the following:

–7 muscles inserted to the scapula from axial skeleton:

•1 -Trapezius•2 -Serratus anterior•3 -Levator scapulea

•4 -Rhomboideus minor•5 -Rhomboideus major

•6 -Pectoralis minor•7 -Omohyoid

The muscles of Shoulder girdle: Those attached to the Scapula

–1 -Subscapularis•2 -Supraspinatus

•3 -Infraspinatus•4 -Teres minor•5 -Teres major

•6 -Latissimus dorsi (a small part of that)

•8 -long head of triceps•7 -Deltoid•9 -Biceps

•10 - Coracobrachialis

10 muscles arise from scapulae and inserted to humerus:10 muscles arise from scapulae and inserted to humerus:

The muscles of Shoulder girdle: Those attached to the Clavicle

2 muscles arise from axial skeleton and inserted to the clavicle:2 muscles arise from axial skeleton and inserted to the clavicle:

2 muscles arise from the clavicle and inserted to Humerus:2 muscles arise from the clavicle and inserted to Humerus:

1 muscles arise from the clavicle and inserted to axial skeleton, 1 muscles arise from the clavicle and inserted to axial skeleton, Sternocleidomastoid Sternocleidomastoid

The muscles attached to the Humerus

–Insertions:

–1 -Supraspinatus

–2 -Infraspinatus

–3 -Teres minor

–4 -Pectoralis major

–5 -Teres major

–6 -Latissimus dorsi

–7 -Subscapularis

•8 -Deltoid

•9 -Coracobrachialis

•Origins:

•1 -Triceps (lateral head & medial head

•2 -Brachioradialis

•3 -Brachialis

•4 -Pronator teres

•5 -Extensor carpi radialis L

•6 -Anconeus

•7 -Supinator

•8 -Common origin of forearm flexor muscles

•)PT, PL, FCR, FCU, FDS(

•9 -Common origin of forearm extensor muscles (ECRB, ED,

EDM, ECU)

18 muscles attached to humerus:18 muscles attached to humerus:9 muscles are inserted from shoulder girdle to humerus upper half9 muscles are inserted from shoulder girdle to humerus upper half9 muscles take origin from humerus lower half9 muscles take origin from humerus lower half

The muscles Attached to the Radius & Ulna

–Insertions to Radius:–1 -Biceps Brachi–2 -Pronator teres–3 -Brachioradialis

–4 -Pronator Quadratus–5 -Supinator

–Origins from Radius–1 -Flexor digi super (radial head)

–2 -Flexor policis longus–3 -Abductor policis longus

–4 -Extensor policis brevis

–Insertions to The Ulna:•1 -Triceps

•2 -Brachialis •3 -Anconeus

•Origins from The Ulna•1 -Flexor Digi superficialis

•2 -Pronator teres•3 -Flexor digi profundus

•4 -Pronator quadratus •5- Flexor carpi ulnaris

•6 -Extensor carpi ulnaris•7 -Abductor policis longus•8 -extensor policis longus

•9 -extensor indicis

9 muscles attached to Radius, :9 muscles attached to Radius, :12 muscles attached to the Ulna12 muscles attached to the Ulna

The Forearm muscles Attached to:both the Radius and the Ulna

–1 -Supinator *•2 -Flexor Digi superficialis*

•3 -Pronator teres8*•4 -Pronator quadratus

•5 -Abductor policis longus•6 -Flexor policis longus (sometime it has an

ulnar head as well)• = *Humerus, Radius & Ulnar attachments

6 muscles attached to both Radius and Ulna :6 muscles attached to both Radius and Ulna :

The forearm muscles Attached only to the Radius

–Insertions to Radius:–1 -Biceps Brachi

–2 -Extensor policis brevis–3 -Brachioradialis

2 muscles attached only to Radius, :2 muscles attached only to Radius, :

The forearm muscles Attached only to the Ulna

–1 -Triceps–2 -Anconeus–3 -Brachialis

–4 -Extensor Indicis–5 -Extensor policis longus

–6 -A common aponeurosis for FCU, ECU & FDP

7muscles attached to 7muscles attached to UlnaUlna