carotid sheath contents overview

Question 1

where does right common carotid artery come from

Answer 1

branch of brachiocephalic trunk

Question 2

where does left common carotid artery come from

Answer 2

direct branch from aortic arch

Question 3

where do the internal and external branch off common

Answer 3

C3 / C4

Question 4

what are branches of external carotid

Answer 4

superior thyroid
ascending pharyngeal
occipital
lingual
facial
posterior auricular

superficial temporal
maxillary (both terminal branches)

Question 5

what does internal jugular vein drain

Answer 5

blood from brain, skull, face and parts of neck

Question 6

where does internal jugular vein exit skull and enter

Answer 6

jugular formamen and enters carotid sheath

Question 7

what does IJV run lateral to

Answer 7

common carotid artery

Question 8

what veins drain into IJV

Answer 8

inferior petrosal sinus
pharyngeal
occipital
facial
lingual
superior thyroid
middle thyroid

Question 9

where does IJV lead to

Answer 9

joins with subclavian vein to become brachiocephalic vein (left and right)

Question 10

where does external jugular vein drain into

Answer 10

subclavian vein

Question 11

where does anterior jugular vein drain into

Answer 11

external jugular vein