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6: Introduction to head and neck by Mind Map: 6: Introduction to head and neck
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6: Introduction to head and neck

Orbits

Eyelids

lacrimal apparatus

The extraocular muscles

orbital facia

conjunctiva

orbital fat

Pharynx

nasopharyx

oropharynx

laryngopharynx

Larynx

paired cartilages

unpaired cartilages

cavity of the larynx

Triangles of the neck

divided by sternocledomastoid

anterior triangle

posterior triangle

blood supply

common carotid artery

veins

Innervation

cranial nerves mainly

sympathetic trunk (vasomotor mainly)

cervical plexus (C1-C4)

The ear

external ear

middle ear (tympanic cavity)

contains the ear ossicles. communicates in front with the nasopharynx and behind with the mastoid antrum

inner ear

Head and neck skeleton

skull (28)

cervical vertebrae (7)

Hyoid bone

scalp

hairy soft tissue covering the cranial vault

from supraorbital margin to external occipital protuberance & superior nuchal line posteriorly

on each side extends to superior temporal line

5 layers (SCALP

Face

boundaries

remember

Oral cavity

2 parts

contents

The nasal cavity

nasal septum divides it into right and left