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Full text of "Diseases Of The Nose Throat And Ear"

ANATOMY AND PHYSIOLOGY                            7

respiration while keeping the mouth tightly shut. Inspiratory and expiratory
air currents follow similar paths in the nasal cavity. Inspired air enters
through the anterior naris, passes over the anterior end of the inferior concha


Fig. 7. Right side of the nasal septum showing the nervous and arterial supply, and tb
of the septum anteriorly and inferiorly. 1, Right long sphenopalatine nerve; 2, Olfactory
3, Medial nasal nerve; 4, Septal posterior nasal artery from sphenopalatine; 5, Anterior
ethmoidal arteries; 6, Greater palatine artery; 7, Septal branch of superior labial artery.

and the 'bleeding area*
nerve branches;
and posterior


3   9

. nerves;
8, Short

Fig. 8. Innervation of the lateral nasal wall. 1, Ganglion (pterygopalatine); 2, 3, Lesser palatine
4,5, Long sphenopalatine nerve; 6, Lateral internal nasal nerve; 7, Olfactory bulb and nerves; i
sphenopalatine nerves; 9, Greater palatine nerve.

to meet the anterior end of the middle concha. Here the stream splits, the
main part passing along the middle meatus and the olfactory cleft beside the
middle concha, and the lesser part passing above the middle concha to aerate
the superior meatus and the spheno-ethmoidal recess. The air leaves the nose