table of shoulder muscles PDF

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Summary

Table of insertion, origin, innervation and action of shoulder muscles...

Description

Shoulder

Muscle

Origin

Insertion

Innervation

Action

Deltoid

Inferior edge of scapula

Deltoid tuberosity of humerus

Axillary nerve

Abduction of arm, flex and extend, medially and laterally rotate arm at the shoulder joint

Trapezius

Superior nuchal line S.P C7-T12

Superior edge of spine of scapula, acromion, posterior border of lateral third clavicle

Acessory nerve

Elevate, depress, retract and rotate scapula

Levator Scapulae

T.V.P C1-C4

Medial border of scapula from superior angle to root of spine

Dorsal Scapular

Elevates scapula

Rhomboid Minor

S.P C7-T1

Medial border of scapula at root of spine

Dorsal Scapular

Elevates and retracts scapula

Rhomboid Major

S.P T2-5

Medial border from spine root to inferior angle

Dorsal Scapular

Elevates and retracts scapula

Latissimus Dorsi

S.P of lower 6 thoracic vertebra

Floor of intertubercular sulcus

Thoracodorsal Addution, medial nerve rotation, extension of the arm at the shoulder

Supraspinatus

Supraspinous fossa

Superior facet of greater tubercle of the humerus

Suprascapular Abduction of arm, nerve RCM

Infraspinatus

Infraspinous fossa

Middle facet of greater tubercle of humerus

Suprascapular Lateral rotoation nerve of arm, RCM

Teres minor

Upper 2.3 of lateral border of scapula

Inferior facet of greater tubercle of humerus

Axillary nerve

Lateral rotation of arm, RCM

Teres major

Inferior angle of scapula

Medial lip of intertubercular sulcus

Inferior subscapular nerve

Medial rotation and extension

Subscapularis

Subscapular fossa

Lesser tubercle of the humerus

Upper and lower subscapular nerves

Medial rotation of arm at the shoulder joint, RCM

1

Shoulder

Pectoralis major

C.H - ant surface of medial half of clavicle

Lateral lip of intertubercular sulcus of humerus

Lateral and medial pectoral nerves

S.H - anterior surface of sternum, first 7 costal cartilages, sternal end of 6th rib, aponeurosis of external obliques

Flexion, adduction, medial rotation of the arm

Pectoralis minor

Rib 1 at costochondral junction

Groove on inferior surface of middle third of clavicle

Medial Stabilizes and pectoral nerve protracts scapula

Serratus anterior

Lateral surfaces of upper 8-9 ribs

Costal surface on medial border of scapula

Long thoracic nerve

Protraction and rotation of the scapula

2...