posterior triangle of the neck

Question 1

boundaries

Answer 1

posterior border of SCM
clavicle
anterior border of trapezius

Question 2

muscles form posterior to anterior that make up floor (5)

Answer 2

splenius capitus
levator scapulae
posterior, middle and anterior scalene

Question 3

contents of posterior triangle (6)

Answer 3

inferior belly of omohyoid muscle
external jugular vein
CN XI
phrenic nerve (overlies scalenus anterior)
brachial plexus (between scalenus anterior and middle)
cutaneous nerves are branches of cervical plexus

Question 4

back of head skin innervation

Answer 4

lesser occipital C2

Question 5

around ear skin innervation

Answer 5

great auricular C2+3

Question 6

across neck skin innervation

Answer 6

transverse cutaneous C2+3

Question 7

over clavicle skin innervation

Answer 7

supraclavicular C3+4