Skull Anna L. Kiss Department of Anatomy, Histology and Embryology

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Presentation transcript:

Skull Anna L. Kiss Department of Anatomy, Histology and Embryology Viscerocranium, nerocranium, skull cap, internal and external base of the skull. Sutures, fontanelles Anna L. Kiss Department of Anatomy, Histology and Embryology Semmelweis University 2016

Cranium Mandible Cranial cavity: Skull: Roof of the skull: skull cap (calvaria) Floor of the skull: base (basis cranii)

Skull: parietal temporal occipital sphenoidal Viscerocranium: maxilla Neurocranium: frontal parietal temporal occipital sphenoidal Viscerocranium: maxilla mandible ethmoidal zygomatic nasal lacrimal palatine vomer inf. nasal concha

Temporal bone squamous part mastoid part

Temporal bone squamous part petrosal part mastoid part

Sphenoidal bone lesser wing greater wing body: sella turcica pterygoid process

Ethmoidal bone Cribriforme plate

Mandible

Mandible

Temproromandibular joint

Sutures: (syndesmosis) coronal: frontal and parietal sagittal:Lparietal Lambdoid:parietal and occipital parieto-mastoid:parietal and temporal occipitomastoid:occipitaland temporal

Fontanelles: (fonticulus) anterior posterior anterolateral (sphenoidal) posterolateral (mastoid)

Bregma: middline meeting place of the bones Pterion: lateral meeting point (parietal, frontal, squama of the temporal, greater wing of sphenoidal) Asterion: mastoid region meets the occipital and parietal bones

Base: Anterior cranial fossa: frontal bones (pars orbitalis)+lesser wing of the sphenoidal bone Middle cranial fossa: from lesser wing of sphenoid bone to pars petrosa of the temporal bone (groove for the sup. petrosal sinus) Posterior cranial fossa: posterior surface of the pars petrosa (termporal bone)+occipital bone (squama)

Anterior cranial fossa Crista galli (ethmoidal bone) Cribriforme plate (ethmoidal bone) Middle cranial fossa sella turcica (hypophyseal fossa): sphenoidal bone sup. orbital fissure (orbit) foramen rotundum (fossa pterygopalatina) foramen ovale (external surface of the skull) foramen spinosumm (meningeal artery) sulcus n. petrosus major et minor optic canal Posterior cranial fossa clivus foramen magnum foramen jugulare sulcus sinus sigmoideus sulcus sinus transversus

Skull: inferior view palatine process of the maxilla palatine bone zygomatic arch sphenoidal bone: pterygoid process choana mandibular fossa external opening of the carotid canal foramen magnum jugular foramen and fossa occipital condyle

Hard palate: palatine process of the maxilla+horizontal plate of the palatine bone Choana: horizontal plate of the palatine bone+pterygoid process of the sphenoidal bone+body of the sphenoidal bone Atlanto-occipital joint: occipital condyles+sup. art. surfaces of the atlas

References Wikipaedia Sobotta Atlas

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