Page 15 - Edited - Webster HEAD AND NECK - part 2-Merge PDF

213 BLOOD SUPPLY OF THE NASAL CAVITY
HN213

THE ARTERIES & VEINS RUN IDENTICAL
ARTERIES DERIVE COURSES
LARGELY FROM THE TO / FROM OPHTHALMIC
MAXILLARY ARTERY ARTERY/VEINS VIA ETHMOIDAL
( ); VEINS DRAIN TO AIR SINUSES (cf. COURSE OF
PTERYGOID VENOUS NASO-CILIARY NERVE,)
PLEXUS ( )250 To
RETROM ANDIBULAR
VEIN VIA MAXILLRS
VEIN.

PTERYGO PALATINE
FORAMEN FROM
PTERYGOPALATINE
FOSSA.
PALATINE CANAL &
VESSELS FROM
PTERYGOPALATINE
(A) LATERAL K.E.W. FOSSA.
WALL

NB. "Know the verses, know the vessels." TRUE, EXCEPT for ① supply to external
nose; & ② supply to upper nasal cavity.

TO/FROM OPHTHALMIC
ARTERY/VEINS

INCISIVE
VESSELS

INCISIVE
K.E.W. CANAL.

NOTICE INCISIVE VESSELS TO UPPER INCISOR TEETH &
(B)SEPTUM. PALATAL GINGIVA: INJECTION INTO THE INCISIVE CANAL IS
TO BE DEPLORED, SINCE LOCAL CEDEMA MAY CUT OFF
BLOOD SUPPLY LONG ENOUGH TO KILL TISSUES i.e. GINGIVA,
TOOTH PULP.
K.E.W.