Posterior Triangle Flashcards
1
Q
What are the boundaries of the posterior triangle?
A
Anterior - posterior border SCM
Posterior - anterior border trapezius
Base - clavicle
2
Q
What are the contents of the posterior triangle?
A
- External jugular
- Roots of brachial plexus
- Spinal accessory nerve
- some of cervical plexus
- Lesser occipital
- Supraclavicular
- Great auricular - Phrenic nerve (deep)
3
Q
Which nerve of cervical plexus accompanies external jugular?
A
Great auricular
4
Q
What structures make up the floor of the posterior triangle?
A
Omohyoid
Splenius capitis
Levator scapulae
Scalenes
5
Q
What forms the external jugular vein?
A
Posterior auricular vein + posterior div retromandibular
6
Q
what muscle is found in both triangles of neck?
A
Omohyoid
7
Q
What structures cross SCM?
A
External jugular vein and great auricular nerve
