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Origin, Insertion, Main Action
Origin of latissimus dorsi
lumbodorsal fascia
insertion of latissimus dorsi
medial surface of proximal diaphysis of humerus
main actions of latissimus dorsi
draws humerus postero-dorsally
origin of clavotrapezius
medial half of nuchal crest of skull and mid-dorsal line up to neural process of axis
insertion of clavotrapezius
clavicle and raphe shared with clavo-brachialis
main actions of clavotrapezius
draws scapula anterodorsally
origin of acromiotrapezius
mid dorsal line from neural process of axis to 4th thoracic vertebra, by aponeurosis
insertion of acromiotrapezius
metacromion process and anterior half of spine of scapula
main actions of acromiotrapezius
adducts and stabilizes scapula
origin of spinotrapezius
mid dorsal line from neural processes of most thoracic vertebrae
insertion of spinotrapezius
tuberosity of spine of scapula: fascia of supraspinatus and infraspinatus mm
main action of spinotrapezius
draws scapula postero-dorsally
origin of Clavodeltoid/clavobrachialis
clavicle and raphe shared with clavotrapezius
insertion of Clavodeltoid
medial surface of ulna
main actions of Clavodeltoid/clavobrachialis
flexes antebrachium
origin of acromiodeltoid
posterior scapula acromion
insertion of acromiodeltoid
lateral surface fo spinodeltoid muscle
main actions of acromiodeltoid
flexes and rotates humerus laterally
origin of spinodeltoid
middle third of scapula spine
insertion of spinodeltoid
deltoid ridge of humerus
main actions of spinodeltoid
flexes and laterally rotates humerus
origin of levator scapulae ventralis
occipital bone and transverse process of atlas
insertion of levator scapulae ventralis
ventrally on metacromion and infraspinous fossa of scapula
main actions of levator scapulae ventralis
draws scapula anteriorly
