Head and Neck Regions

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The Neurocranium bones ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Facial skeleton ( viscerocranium or splanchnocranium ) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Anterior Skull ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Anterior Skull ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Clinical applications ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Clinical… ,[object Object],[object Object],[object Object],[object Object],[object Object]

Lateral aspect of the skull ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Posterior aspect of the skull ,[object Object],[object Object],[object Object],[object Object],[object Object]

Superior aspect of skull ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Landmark Shape and location Pterion G. Wing sphenoid Lambda Pt. of coronal/sagittal sutures Bregma (forepart of head) Pt. of coronal/sagittal sutures Vertex Superior part of skull Asterion Starshaped, parietomastoid, occipitomastoid and lambdoid sutures Glabella At the root of the nose Inion ( back of head) Prominent at external occipital protuberance Nasion ( nose) Meeting of frontonasal and internasal sutures

SCALP ,[object Object],[object Object],[object Object],[object Object],[object Object]

Muscles of facial expression ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Facial muscles Facial expression 1. Orbicularis oris Oral sphincter, pucker, whistle 2. Dilator muscles Open mouth wide 3. Levator labii superioris alaque nasi Elevate upper lip and wing of nose 4. Mentalis Expression of doubt 5. Buccinator Aids in mastication, blowing 6. Depressor anguli oris 7. Procerus Frowning,depress angle mouth Draws eyebrow inferior, frown 8. Levator anguli oris Elevates corner of mouth 9. Zygomaticus major Smile, laughing 10. Zygomaticus minor Raise upper lips in sadness 11.Levator labii superioris Deepens nasolabial sulcus in sadness 12.Depressor labii inferior Draws lips laterally in impatience 13. Risorius 14. Platysma From platysma n maseter, grin Draws mouth inferior, grimace or horror

Muscles of the Nose ,[object Object],[object Object],[object Object],[object Object],[object Object]

Branches of Facial nerve ,[object Object],[object Object],[object Object],[object Object],[object Object]

Facial nerve injury ,[object Object],[object Object],[object Object],[object Object],[object Object]

Nerves of the face ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Ophthalmic nerve ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Maxillary nerve ,[object Object],[object Object],[object Object],[object Object]

Mandibular nerve ,[object Object],[object Object],[object Object],[object Object]

Facial Vasculature ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Maxillary artery, continue… ,[object Object],[object Object],[object Object],[object Object],[object Object]

Other clinical facts of the facial vasculatures ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Other clinical features… ,[object Object],[object Object],[object Object],[object Object]

Facial venous drainage ,[object Object],[object Object],[object Object],[object Object],[object Object]

Infratemporal fossa and its contents ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Infratemporal fossa , continue… ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Mandibular division of Trigeminal nerve and its branches ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Triangles of the Neck Cervical Triangles Anterior

Anterior triangle: Ventrally by midline, SCM lateral, cephalic by body of mandible ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Posterior triangle: anterior by SCM, posterior by trapezius, inferior by clavicle ,[object Object],[object Object],[object Object]

Cervical fascia ,[object Object],[object Object],[object Object],[object Object],[object Object]

Carotid sheath ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Veins of the neck ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Arteries of the Head and Neck ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Common carotid artery ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Vertebral artery ,[object Object],[object Object],[object Object],[object Object]

Basilar artery, ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Posterior cerebellar artery ,[object Object],[object Object],[object Object],[object Object]

External carotid artery, branches: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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Head and Neck Regions

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Head and Neck Regions