Origin and insertion

Origin

stationary attachment

Insertion

moveable attachment

Splenius capitis

Origin : nuchal ligament, spinous process of C7 to T3

Insertion : mastoid process, lateral ⅓ of superior nuchal line

ilocostalis

origin:  posterior surface of sacrum, iliac crest, SP of lumbar vertebrae

insertion : ribs

longissimus

origin:  posterior surface of sacrum, iliac crest, SP of lumbar vertebrae

insertion : TP of cervical and thoracic vertebrae

spinalis

origin - posterior surface of sacrum, iliac crest, SP of lumbar vertebrae

Insertion - SP of cervical and thoracic vertebrae

Splenius cervicis

Origin: sp of T3-T6

Insertion transverse process of C1-C3

Semispinalis

origin TP of C4-T1

Insertion: between superior/inferior nuchal line, SP of cervical and thoracic vertebrae 4-6 segments superior to origin

Multifidus

origin :  TP of vertebrae, posterior aspect of sacrum

insertion : SP of vertebrae 2-4 segments superior to origin

rotatores

origin  TP of vertebrae

Insertion: SP of vertebrae 1 (R brevis) or 2 (R longus) segments superior to origin

 interspinalis

origin :  SP of vertebrae

Insertion SP of superior vertebrae

intertransversarii

origin TP of vertebrae

Insertion TP of superior vertebrae

levatores costarum

origin : TP of C7-T11 

Insertion of levatores colostrum - Ribs

trapezius

origin : superior nuchal line, external occipital proturberance, nuchal ligament , SP of C7-T12

Insertion- lateral ⅓ of clavicle , acromion, spinal of scapula

Latissimus dorsi

origin : SP of T6-T12, thoracolumbar fascia, iliac crest, lower 3-4 ribs

insertion : floor of intertubercular groove of humerus

 levator scapulae

origin : TP of C1-C4 

Insertion- medial border of scapula above spine of scapula (SOS)

rhomboid minor

origin :  SP of C7-T1

Insertion - medial border of scapula, at level of scapula (SoS)

rhomboid major

Origin - SP of T2-T5

Insertion -  medial border of scapula, below the scapula (SoS)

serratus posterior superior

origin :  SP of C7-T3

Insertion - superior 4 ribs

Serratus posterior inferior

origin : SP of T11-L2 

Insertion inferior 4 ribs

deltoid

origin : lateral ⅓ of clavicle, acromion and spine of scapula

insertion - deltoid tuberosity

teres major

origin :  posterior surface of inferior angle of scapula

Insertion - medial lip of intertubercular groove of the humerus

supraspinous

origin- supraspinous fossa of scapula

Insertion- greater tubercle of humerus (superior facet)

infraspinatus

origin : infraspinous fossa of scapula

Insertion - greater tubercle of humerus (middle facet)

Teres minor

origin:  lateral border of scapula

Insertion - greater tubercle of humerus (inferior facet)

Subscapularis

origin: subscapular fossa of scapula

insertion - lesser tubercle of humerus

Pectoralis major

origin- medial half of the clavicle , manubrium and body of sternum, 1-6 costal cartilage, external oblique aponeurosis

Insertion - lateral lip of intertubercular groove

pectoralis minor

origin  rib 3-5

Insertion - coracoid process

Subclavius

origin :  rib 1 and costal cartilage 1

Insertion- clavicle

biceps brachii (long head)

origin : supraglenoid tubercle of scapula

Insertion- radial tuberosity of radius

biceps brachii (short head)

origin : coracoid process

Insertion - radial tuberosity of radius

coracoid brachialis

origin :  coracoid process of scapula

Insertion - shaft of humerus

brachials

origin shaft of humerus

Insertion - ulnar tuberosity and coronoid process of ulna

triceps brachii (long

origin:  infraglenoid tubercle of scapula

Insertion - olecranon of ulna

triceps brachii (medial)

origin : shaft of humerus

Insertion - olecranon of ulna

triceps brachii (short)

origin : shaft of humerus

Insertion - olecranon of ulna