Deep Posterior Thoraco-appendicular muscles Flashcards
Where does the rhomboid minor insert?
Triangular area at the medial end of the scapular spine
What is the origin of the rhomboid minor?
Nuchal ligament; spinous processes of C7 and T1 vertebrae
What nerve innervates the rhomboid minor?
Dorsal scapular nerve (C4, C5)
What are the actions of the rhomboid minor?
Retract scapula and rotate it to depress glenoid cavity; fix scapula to thoracic wall
What is the origin of Rhomboid Major?
Spinous Processes of T2-T5 vertebrae
Where does the rhomboid major insert?
Medial border of scapula from level of spine to inferior angle
What nerve innervates the rhomboid major?
Dorsal scapular nerve (C4, C5)
What are the actions of the rhomboid major?
Retract scapula and rotate it to depress glenoid cavity; fix scapula to thoracic wall
What is the origin of the Levator Scapulae?
Posterior tubercles of transverse processes of C1-C4 vertebrae
Where does the levator scapulae insert?
Medial border of scapula superior to root of spine
What nerve innervates the levator scapulae?
Dorsal scapular C5 and cervical spinal nerves (C3, C4)