Levator scapulae

Question 1

General location of levator scapulae

Answer 1

• Superior 1/3 lies deep to sternocleidomastoid muscle
• inferior 2/3 lies deep to trapezius

Question 2

Origin of levator scapulae

Answer 2

Posterior tubercles of TPs of C1-C3/4

Question 3

Insertion of levator scapulae

Answer 3

Medial border of scapula from superior angle to base of spine

Question 4

Innervation of levator scapulae

Answer 4

• Ventral rami C3, C4 from deep branches of cervical plexus
• twig from dorsal scapular nerve (C5)

Question 5

Blood supply of levator scapulae

Answer 5

Deep branch of transverse cervical artery

Question 6

Action of levator scapulae

Answer 6

• elevate & retract scapula with trapezius
• laterally flex cervical vertebral column when scapula is fixed