trapezius

Question 1

trapezius origin

Answer 1

medial 1/3 superior nuchal line & external occipital protuberance, ligamentum nuchae, spinous processes & supraspinous ligament C7-T12

Question 2

trapezius insertion

Answer 2

posterior border lateral 1/3 of clavicle, medial border of the acromion and upper border of the spine of scapula

Question 3

trapezius dof

Answer 3

upper -> inferiorly, laterally
middle -> horizontally
lower -> superiorly, laterally

Question 4

trapezius nerve supply

Answer 4

spinal accessory nerve C2, 3, 4

Question 5

trapezius actions

Answer 5

retracts, elevates and laterally rotates pectoral girdle, extends and laterally flexes the neck