External Jugular Vein

Question 1

Beginning

Answer 1

1. Near mandible angle
2. Below parotid
3. By union of posterior division posterior facial (retromandibular) vein and posterior auricular vein

Question 2

Course

Answer 2

1. Descends obliquely on sternomastoid
2. Then superficial to deep fascia of posterior triangle roof

Question 3

End

Answer 3

1. 1 inch above clavicle
2. It pierces deep fascia of roof
3. Descends inside posterior triangle to end in subclavian vein

Question 4

Tributaries

Answer 4

1. Posterior auricular vein
2. Posterior division posterior facial vein
3. Suprascapular vein
4. Transverse cervical vein
5. Anterior jugular vein
6. Posterior external jugular vein (drains scalp back and upper part of neck back and joins middle of EJV)

Question 5

Surface anatomy

Answer 5

Line from point below and behind mandible angle to point at clavicle middle

Question 6

Applied anatomy

Answer 6

1. EJV is adherent to deep fascia at point where it pierces it
2. If it is injured at this point it will not collapse and air embolism occurs