Cranial cavity + skull cap
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Transcript of Cranial cavity + skull cap
Dr. Ahmed ElNashar 2015
SKELETON OF HEAD & NECK2015
Dr. Ahmed El-Nashar
Practical Anatomy for dental student
Cranial CavityTHE SKULL ….
•Parts
•Bone
•Features
•Structure attached
Parts + Bone
1. Ethmoid bone
2. Frontal bone
3. Sphenoid bone
4. Temporal bone
5. Pareital bone
6. Occipital bone
Parts + Bone
Ant. Cranial fossa
Ant. Cranial fossa1. Frontal crest
2. Frontal air sinus.
3. Foramen ceacum
4. Crista galli
5. Cribriform plate
6. Orbital plate
7. ant. Ethmoidal f.
8. post. Ethmoidal f.
Ant. Cranial fossa1. Frontal crest
2. Frontal air sinus.
3. Foramen ceacum
4. Crista galli
5. Cribriform plate
6. Orbital plate
7. ant. Ethmoidal f.
8. post. Ethmoidal f.
Middle Cranial fossa
Middle. Cranial fossa
1.Lesser wing of sphenoid.
2. Jugum sphenoidal.
3.ant. Celnoid process.
4. post. Celnoid process
5. Optic groove
6. Sella turcica.
7. Hypophyseal fossa.
Middle. Cranial fossa
1.Lesser wing of sphenoid.
2. Jugum sphenoidal.
Middle. Cranial fossa1.Lesser wing of sphenoid.
2. Jugum sphenoidal.
3.ant. Celnoid process.
4. post. Celnoid process
5. Optic groove
6. Sella turcica.
7. Hypophyseal fossa
8. Trigeminal impression
9. Arcuate emeninece.
10. Tegmen tempani.
Middle. Cranial fossa
1. Optic canal.
2. Foramen rotandum
3. Foramen ovale.
4. f. spinosum
5. f. lacerum.
Middle. Cranial fossa1.Lesser wing of sphenoid.
2. Jugum sphenoidal.
3.ant. Celnoid process.
4. post. Celnoid process
5. Optic groove
6. Sella turcica.
7. Trigeminal imporession
8. Arcuate emeninece.
9. Tegmen tempani.
Middle. Cranial fossa
Middle. Cranial fossa1. Clavius of skull = basilar part of
occipital bone
2. Upper border of petrous bone.
Superior petrosal sinus
Tentorum cerebelli
3.Sigmoid sulcus.
Sigmoid sinus
4. Internal occipital crest.
Occipital sinus
Falx cerebelli
5. Internal occipital protuberance.
Confluence of sinuses
6. Transverse sulcus.
Middle. Cranial fossa
1. Foramen magnum
2. Jugular foramen
3.ant. Condylar =
hypoglossal canal
1. Optic canal
Optic N & ophthalmic A
2. F rotundum: Maxillary N
3. F ovale: Mandibular N
4. Foramen spinosum: MMA
5. TRIGEMINAL GANGLION
6. F lacerum I.C.A.
7. Jugular foramen
Inferior petrosal sinus
Internal jugular vein
9, 10, 11 NS
8. Internal auditory meatus
7, 8 Ns
9. Foramen magnum
Medulla& vertebral A & spinal accessory N
1
2
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6
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9
5
Skull cap = calavriaTHE SKULL ….
1. Coronal suture
2. Sagittal suture
3. Lambdoid suture
4. Frontal bone
5. Parietal bone
6. Arachenoid granulation
7. Grooves for MMA
1
2
3
4
56
67
7
Groove fo r sup. Sagittal sinus
Groove fo r sup. Sagittal sinus
1. Coronal suture
2. Sagittal suture
3. Lambdoid suture
4. Frontal bone
5. Parietal bone
6. Arachenoid granulation
7. Grooves for MMA
1 1
2
3 3
4
5
6
6
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