anatomy of nose and
TRANSCRIPT
Anatomy of Nose and
Nasal Secretions
Presented By:Mian Naqib Jan
Farman ullah
ANATOMICALLY NOSE IS DIVIDED AS EXTERNAL NOSE AND NASAL CAVITY
Some features of external nose: ROOT DORSUM TIP ANTERIOR NARES NASAL SEPTUM COLUMELLA
Anatomy of Nose:
External nose is pyramidal in shape and maintained by skeletal framework
External framework is made of bony and cartilaginous part
Bony part are formed by nasal processes of frontal bone and ascending processes of the maxilla
Cartilaginous part are formed by nasal cartilage and alar cartilages
Skin over the external nose is thin in upper part and relatively thicker in lower part
EXTERNAL NOSE
Arterial supply of the external is from
Maxillary and opthalmic arteries
ARTERIAL SUPPLY OF EXTERNAL NOSE
Nerve supply of external nose is from External nasal nerve Infratrochlear nerve Infraorbital nerve
Nerve supply of external nose
Nasal cavity are two irregular cavities divided by nasal septum
Nasal cavity is bounded by Floor Roof Medial wall Lateral wall
NASAL CAVITY
Floor is about 5cm long and 1.5 cm wide Floor is formed anteriorly by palatine
process of maxilla and posteriorly by horizontal plate of palatine bone
FLOOR OF NASAL CAVITY
Roof is about 7cm long and 1.5 wide Anterior slope is formed by nasal part of
frontal bone and nasal cartilages Posterior slope is formed by inferior surface
of body of sphenoid bone
ROOF OF NASAL CAVITY
Medial wall of nasal cavity is formed by nasal septum
Nasal septum is formed by both bony and cartilaginous parts
Bony part is mainly formed by Perpendicular plate of ethmoid above and
vomer bone below and behind cartilaginous part is formed mainly by
septal cartilage
MEDIAL WALL
Anterosuperior part is supplied by anterior ethmoidal artery
Posteroinferior part is supplied by spenopalatine artery
Anteroinferior part by the superior labial branch of facial artery
Posterosuperior part by the greater palatine artery branch of 3rd part of maxillary artery
ARTERIAL SUPPLY OF NASAL SEPTUM
In the anteroinferior part of the nasal septum an anastamosis of arteries is present called kiessel Bach’s plexus and the area is called little area
The arteries taking part in this anastamosis are
Sphenopalatine artery Greater palatine Superior labial branch of facial artery Anterior ethmoidal artery
LITTLE AREA
Anterosuperior part is supplied by internal nasal branch of anterior ethmoidal nerve
Anteroinferior part by anterior superior alveolar nerve
Posteroinferior part by nasopalatine branch of the pterygopalatine ganglion
Posterosuperior part by medial posterior nasal branches of pterygopalatine ganglion
Special sensory nerve is olfactory confined to upper part
NERVE SUPPLY OF NASAL SEPTUM
Lateral wall of nose is irregular due to presence of three shelf like projections called conchae
Conchae are three in number Superior Middle Inferior Three meatus are present below each
concha
LATERAL WALL
Superior meatus contain the opening of posterior ethmoidal cells
Middle meatus contians the opening of maxillary sinus, anterior and middle ethmoidal cells and frontal sinus
Inferior meatus receives the nasal opening of nasolacrimal duct
TURBINATESON LATERAL WALL
Anterosuperior part by anterior ethmoidal artery
Anteroinferior part by branches of facial and greater palatine arteries
Posterosuperior part by sphenopalatine artery
Posteroinferior part by branches from greater palatine artery
ARTERIAL SUPPLY OF LATERIAL WALL OF NOSE
Anterosuperior part by anterior ethmoidal nerve-branch of ophthalmic nerve
Anteroinferior part by superior alveolar nerve
Posterosuperior part by superior lateral nasal branches from pterygopalatine ganglion
Posteroinferior part by greater palatine branch from ptergopalatine ganglion
NERVE SUPPLY LATERAL WALL OF NOSE
DEFINATION Nasal discharge refers to fluid that comes
from the nose and originates in the nasal septum.
NATURE. The nasal discharge may be clear,blood .it
may contain mucous, pus .
NASAL DISCHARGE
Nasal discharge occurs due to the irritation of the lining nasal passages
Foreign bodies Parasites Fungal infections Nasal tumor Allergic reactions
CAUSES OF NASAL DISCHARGE
Accumulation of secretions Difficulty in breathing Decreased air flow through upper
respiratory tract The patient may have loss of appetite Reverse sneezing may occur if the
irritations extend to back of throat
SIGNS OF NASAL DISCHARGE
Nasal discharge is diagnosed by medical history and physical examination
The cause of nasal discharge may be determined by diagnostic test
Complete blood count [CBCs] Radiographs x rays of skull frequently
required Rhinoscopy may help in the identification of
nasal lesion Nasal biopsy can be performed
NASAL DISCHARGEDIAGNOSED
Antibiotics Antiparasitics Steroids Antifungal drugs
NASAL DISCHARGE TREATMENT
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