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ANATOMY
Medicine Made Simple
, ORAL CAVITY
Oral cavity can be divided into oral cavity proper (Inner larger)
and vestibule (outer smaller )
PALATE
Separates the oral cavity from the nasal cavity
1.Hard palate:
Palatine plate of maxilla- anterior 2/3
Horizontal plate of palatine bone- posterior 1/3
2.Soft palate:
Divide naso & oro pharynx
Anterior surface marked by median
raphe uvula at posterior edge
* Muscles
tensor veli palatini (tenses soft palate) Framework by the aponeurosis
levator palatine (elevation)
palatoglossus
palatopharyngeus inserted to the aponeurosis
muscular uvulae
Nerve supply - Motor
Passavant’s ridge
All palatine musclesX, XI Some fibres of palatopharyngeus, Closes
(vagoaccessory complex) pharyngeal isthmus with soft palate
during swallowing.
except tensor vali palatine (by
V3)
if paralyzed nasal regurgitation
impaired voice
flat palatal arch
If one side of the palate is paralysed it
deviate to non-affected side
(Face, palate opposite side
Rest same side )
1
ANATOMY
Medicine Made Simple
, ORAL CAVITY
Oral cavity can be divided into oral cavity proper (Inner larger)
and vestibule (outer smaller )
PALATE
Separates the oral cavity from the nasal cavity
1.Hard palate:
Palatine plate of maxilla- anterior 2/3
Horizontal plate of palatine bone- posterior 1/3
2.Soft palate:
Divide naso & oro pharynx
Anterior surface marked by median
raphe uvula at posterior edge
* Muscles
tensor veli palatini (tenses soft palate) Framework by the aponeurosis
levator palatine (elevation)
palatoglossus
palatopharyngeus inserted to the aponeurosis
muscular uvulae
Nerve supply - Motor
Passavant’s ridge
All palatine musclesX, XI Some fibres of palatopharyngeus, Closes
(vagoaccessory complex) pharyngeal isthmus with soft palate
during swallowing.
except tensor vali palatine (by
V3)
if paralyzed nasal regurgitation
impaired voice
flat palatal arch
If one side of the palate is paralysed it
deviate to non-affected side
(Face, palate opposite side
Rest same side )
1
