Muscles of the Brachial Synsarcosis Flashcards
Origin of trapezius
Cervical: mid-dorsal aponeurosis
Thoracic: dorsal spines of thoracic vertebrae
Insertion of trapezius
Spine of scapula
Action of cervical trapezius
retraction
Action of thoracic trapezius
protraction of forelimb and elevation of shoulder
Innervation of trapezius
Cranial nerve XI (Spinal accessory nerve)
Blood supply of trapezius
Subscapular artery
Origin of brachiocephalicus
clavicular intersection
Insertion of brachiocephalicus
neck and skull and the humerus
Action of brachiocephalicus
protraction and moves neck laterally
Innervation of brachiocephalicus
Cranial nerve XI (Spinal accessory) and axillary
Origin of omotransversarius
Wing of the atlas
Insertion of omotransversarius
Distal scapular spine (horses) or acromion
Innervation of omotransversarius
cranial nerve XI (spinal accessory) and cervical
Action of omotransversarius
protraction
Omotransversarius in cows is…
indistinct (rudimentary)
Omotransversarius in horses is…
fused with brachiocephalicus (no acromion)
Origin of lat dorsi
thoracolumbar fascia (continuous with fascia)
Insertion of lat dorsi
humerus on the teres major tubercle