Blood Supply of Inferior Turbinate and Lateral Nasal Wall
Özet
The blood supply of the nasal
cavity acquires a great deal of interest for many reasons; the first, for the treatment
of the common condition which is the epistaxis that need some times surgical
interventions. The second, is the newly developed endoscopic surgeries, especially,
sinus and skull base surgeries that requires a good choice of endonasal flap to close
the dural defects as a consequences of these operations. Successful closure of such
defects depends on a vital flap with good blood supply. The blood supply of the
nasal cavity is still a subject of controversy; the clinical textbooks added some details
to the courses of the arteries from surgical points of interest. In this study, forty
formalin-fixed hemisected cadaveric heads were examined; with the aid of
dissecting microscope. As a result; the lateral wall was studied, the sphenopalatine
artery (SPA) divides before or at the sphenopalatine foramen (SPF) in 36 cases while
it divides inside the nose in 4 cases. The superior turbinate artery arises from SPA in
15 cases and arises from nasoseptal (NSA) branch in 25 cases. The SPA gives the NSA
and the posterior lateral nasal artery (PLNA). The posterior lateral nasal artery
(PLNA) gave middle turbinate artery (MTA) and inferior turbinate artery (ITA).The
average length of ITA was 9.057± 1.674 mm, the diameter was 1.452 ± 0.172 mm,
the distance from posterior end of IT 7.879 ± 1.52 mm. Anastomosis in the lateral
nasal wall between ITA and anterior ethmoidal and lateral nasal – of facial- arteries
were established. In conclusion, the lateral nasal wall is supplied mainly by the SPA
and its branches, the ethmoidal arteries via their nasal branches, and the facial
artery participate in the blood supply of lateral wall and anastomose with branches
of SPA.
