Download Foramina_of_Palate_and_Nasal_Cavity_2011

FORAMINA OF PALATE AND NASAL CAVITY
FORAMEN
ROTUNDUM –
CN V2
V1
V2
V3
TRIGEMINAL
(SEMILUNAR)
GANGLION
PTERYGOMAXILLARY
FISSURE –
LEADS
TO
PTERYGOPALATINE
FOSSA
V2 - MAXILLARY - GSA
Inferior Orbital Fissure
Pterygomaxillary
Fissure
Post. Sup
Alveolar For.
V2 - MAXILLARY - GSA
Nose
Infraorbital
Zygomatic
3. Posterior
Superior Alveolar
Maxillary molar teeth
4. Infraorbital
Lower eyelid, nose,
upper lip
a) Ant. & Mid Sup
Alveolar
Other Maxillary teeth
Post
Sup. Alveolar
5. Zygomatic
Skin of check
POSTERIOR
SUPERIOR
ALVEOLAR
FORAMINA –
IN MAXILLARY
BONE –
CONNECT
INFRATEMP.
FOSSA TO
MAX TEETH
POST. SUP.ALV.
N., A., V.
FORAMEN
OVALE
FORAMEN
SPINOSUM
PTERYGOMAXILLARY
FISSURE –
LEADS
TO
PTERYGOPALATINE
FOSSA
FORAMEN
OVALE
NOSE
FORAMEN
SPINOSUM
MIDDLE
MENINGEAL
A.
INFERIOR
ALVEOLAR
N. (V3)
POSTERIOR
SUPERIOR
ALVEOLAR N.
V2
LINGUAL N.
V3
V2 - MAXILLARY - GSA
1. Meningeal Branch
Dura of Middle
Cranial Fossa
Nasal
Branches
NasoPalatine
Greater
Palatine
2. Ganglionic branches
V2 a) Greater Palatine N.
Hard Palate
b) Lesser Palatine N.
Soft Palate
c) Nasopalatine
Nasal Cavity
Ant. part of hard Palate
d) Nasal Branches
Lesser
Nasal Cavity
Palatine
Note: V2 branches from Pterygopalatine Fossa to Nasal Cavity are
deep and can only be seen on bisected head
BASE OF CRANIUM FROM EXTERNAL SIDE
HARD
PALATE
OCCIPITAL
CONDYLE
FORAMEN
MAGNUM
C)HARD PALATEHORIZONTAL PLATE OF
PALATINE BONES &
PALATINE PROCESS OF
MAXILLARY BONES
B)OCCIPITAL BONEHAS FORAMEN
MAGNUM- SPINAL
CORD;
OCCIPITALCONDYLESFOR C1-ATLAS
HAMULUS OF
MEDIAL
PTERYGOID
PLATE
MEDIAL AND
LATERAL
PTERYGOID
PLATES
EXTERNAL
AUDITORY
MEATUS
NASAL CAVITY
SPHENOPALATINE
FORAMEN
D. NERVES of NASAL CAVITY
Nerves
1.Olfactory N. - SVA
smell; Olfactory Area
2.General Sensation GSA touch, pain, etc.
- V1 Anterior Ethmoidal
N.
- V2 Nasal Branches
- V2 Nasopalatine N.
3. Mucous Glands of
nose - GVE - VII - Facial
N. by Pterygopalatine
Ganglion (hitchhike
with branches of V)
OLFACTORY N.
ANT.
ETHMOIDAL
N.
NASAL
BR.
PTERYGOPALATINE
GANGLION
NASOPALATINE
N.
OLFACTORY AREA = area of Olfactory nerve endings
RESPIRATORY AREA = rest of nasal cavity
E. and F. ARTERIES/VEINS, LYMPHATICS
1. Arteries
a. Sphenopalatine Artery
- from Maxillary A.
b. Ant. & Post Ethmoidal A.
- from Ophthalmic A.
c. Branches of facial A.
ANT.
ETHMOIDAL
A.
SPHENOPALATINE
A.
br. of
FACIAL
A.
2. Veins
a. Ethmoidal vein
drain to Ophthalmic v.
b. Other branches
Pterygoid Venous Plexus
c. Facial Vein
Note: Epistaxis (nosebleed) can be extensive due to
Anastomoses – Spurting if arterial
F. LymphaticsRetropharyngeal
Nodes
III. PALATE
INCISIVE
FORAMEN
B. Anatomy
1. Hard
Palate
a. Maxillary
Bones
(palatine
process)
b. Palatine
bones
(horizontal
plate)
INCISIVE
FORAMEN
GREATER
PALATINE
FORAMEN
LESSER
PALATINE
FORAMEN
ARTERIES, NERVES AND LYMPHATICS
Nasopalatine N
3. Blood Supply
a. Descending Palatine
Artery (from Maxillary A.) divides to
-- Greater Pal. A. – hard palate
Lesser Pal. A. – soft palate
b. Ascending Palatine
Artery (from facial A.)
4. Nerves- from V2 – sensory
a. Greater Palatine N.
& Nasopalatine N.—hard
Palate
b. Lesser Palatine—
Soft Palate
5. Lymphatics—Retropharyngeal Nodes
PETROTYMPANIC`
FISSURE