Skull cranial cavity Skeleton of brain can be
Skull & cranial cavity ► Skeleton of brain can be divided into 8 cranial bones un paired frontal paired parietal&temporal occipital Ethmoid sphenoid 14 facial bones
Facial bones Paired ► Lacrimal ► Nasal ► Palatine ► Inferior turbinate ► Maxillary ► zygomatic Un paired ► Vomer ► mandible
Calvaria & cranium ► Frontal bone ► Parietal bone ► Temporal bone ► Occipital bone ► Sphenoid bone ► ethmoid bone
Sutures of the skull ► Coronal ► Sagittal ► Squamous ► lambdoid
Junctions of the cranial sutures ► Lambda ► Bregma ► Pterion ► Asterion ► Nasion ► inion
Foramina in the skull anterior cranial fossa Ø cribriform plate Ø Foramen cecum Ø Anterior and posterior ethmoidal foramina middle cranial fossa v Optic canal v Superior orbital fissure v Foramen rotendum
► Foramin ovale ► Foramin spinosum ► Foramin lacerum ► Carotid canal ► Hiatus of facial canal posterior cranial fossa ü Internal auditory meatus ü Jugular foramin ü Hypoglossal canal ü Foramen magnum ü Condyloid foramin ü Mastoid foramin
Foramina in front of skull ► Zygomaticofacial foramen ► Supraorbital notch ► Infra orbital foramin ► Mental foramin
Foramina in the base of skull ► Petrotympanic fissure ► Stylomastoid foramin ► Incisive canal ► Greater palatine foramin ► Lesser palatine foramin ► Palatine canal ► Pterygoid canal ► Sphenopalatine foramin
Structures in the cranial fossa ► Foramen cecum ► Crista galli ► Cribriform plate ► Anterior clinoid process ► middle clinoid process ► posterior clinoid process ► lesser wing of sphenoid bone ► greater wing of sphenoid bone
► Sella turcica ► Jugum sphenoidale ► clivus
Bony orbit Walls , margins Fissure, canal & foramina ► Superior & inferior orbital fissure ► optic canal ► Supra orbital & infra orbital foramen ► Anterior &posterior ethmoidal foramina ► Nasolacrimal canal
Lacrimal apparatus ► Lacrimal glands ► Lacrimal canaliculi ► Lacrimal sac ► Tears CROCODILE TEARS SYNDROME
Nasal cavity D. N. S RUNNY NOSE NASAL POLYP
PARANASAL SINUSES ETHMOIDAL SINUS FRONTAL SINUS MAXILLARY SINUS SPHENOIDAL SINUS
EAR Ext ear Aurical Auditory meatus Tympanic membrane Middle ear Tympanic cavity Oval window round window, Stapidius, tensor tympani muscle Auditory ossicles, malleus, incus, stapes Eustachian tube Otitis media, otosclerosis, conductive deafness Inner ear Bony labyrinth, membranous labyrinth
STRUCTURE OF THE NECK Post triangle Ant triangle Hyoid bone Styloid process Muscles of the neck Platysma, sternocleidomastoid , supra hyoid muscles Infra hyoid muscle
DEEP STRUCTURE OF NECK Trachea Esophagus Thyroid gland Parathyroid gland Thyroid cartilage Vagus nerve Sympathetic trunk Thoracic duct
FACE Muscles of facial expression Occipitofrontalis Corrugator supercilli Orbicularis oculli Procerus Nasalis Depressor septi Orbicularis oris Levato anguli oris Levator labi superioris, alequa nasi Zygomaticus major, minor Depressor labii inferioris Depressor anguli oris Risorius Buccinator Mentalis Auricularis, ant, sup, &post
SCALP Layers Skin, close subcutaneous tissues Aponeurosis epicranalis Loose connective tissue Pericranium
Temporal &infra temporal fossa
MASTICATION Muscles of mastication Temporalis Masseter Lateral pterygoid Medial pterygoid
PAROTID GLAND Parotitis mumps
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