5/26 n/a for posterior cervicle tri

Question 1

lesser occipital nerve

Answer 1

• ar of C2-C3 cervical plexus
• pass directly to skin
• skin of superior posteriorlateral neck
• scalp pos to ear

Question 2

greater auricular nerve

Answer 2

• ar of C2C3 cervical plexus
• ascends vertically across SCM posterior to EJV
• skin on mandible ans inf lobe

Question 3

suprascapular nerve

Answer 3

• arise from sup trunk of brachial plexus
• run across lateral cervical region
• supply supraspinatus and infraspinatus
• send articular branch to sj

Question 4

transverse cervical nerve

Answer 4

• ar C2C3 cervical nerve

- around SCM, deep to EJV and platysma

Question 5

suprasclavicular nerve

Answer 5

• ar C3C4 cervical plexus
• emerge as trunk under SCM and cross clavicle
• supply skin of neck and skin over shoulder

Question 6

dorsal scapular nerve

Answer 6

• ar C5 brachial plexus

- supply levator scapula and rhomboids

Question 7

phrenic nerves

Answer 7

• C345
• forms ant scalene muscle
• lie anterior to subclavian arteries and posterior to subclavian vein

Question 8

external jugular vein

Answer 8

• near angle of mandible by union with retromandubular vein with pos auricular vein
• cross SCM, deep to platysma, pierce investing layer
• descend to inf and terminates in subclavian vein

Question 9

transverse cervical artery

Answer 9

• run superficially and laterally across phrenic nerve and anterior scalene
• superior to clavicle
• cross brachial plexus
• passing deep to traps

Question 10

suprascapular artery

Answer 10

• from TCA
• pass inferolaterally across anterior scalene and phrenic nerve
• cross subclavian artery and cord of brachial plexus
• pass posterior to clavicle
• supply muscles on posterior scapula