Skull & cranial cavity

1. 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

5. Paired Lacrimal Nasal Palatine Inferior turbinate Maxillary zygomatic Un paired Vomer mandible Facial bones

9. Calvaria & cranium • Frontal bone • Parietal bone • Temporal bone • Occipital bone • Sphenoid bone • ethmoid bone

11. Sutures of the skull • Coronal • Sagittal • Squamous • lambdoid

12. Junctions of the cranial sutures • Lambda • Bregma • Pterion • Asterion • Nasion • inion

14. Foramina in the skull anterior cranial fossa • cribriform plate • Foramen cecum • Anterior and posterior ethmoidal foramina middle cranial fossa • Optic canal • Superior orbital fissure • Foramen rotendum

17. Foramin ovale • Foramin spinosum • Foraminlacerum • Carotid canal • Hiatus of facial canal posterior cranial fossa • Internal auditory meatus • Jugular foramin • Hypoglossal canal • Foramen magnum • Condyloidforamin • Mastoid foramin

18. Foramina in front of skull • Zygomaticofacial foramen • Supraorbital notch • Infra orbital foramin • Mental foramin

20. Foramina in the base of skull • Petrotympanic fissure • Stylomastoidforamin • Incisive canal • Greater palatine foramin • Lesser palatine foramin • Palatine canal • Pterygoid canal • Sphenopalatineforamin

21. Structures in the cranial fossa • Foramen cecum • Cristagalli • Cribriform plate • Anterior clinoid process • middle clinoid process • posterior clinoid process • lesser wing of sphenoid bone • greater wing of sphenoid bone

24. Sella turcica • Jugum sphenoidale • clivus

25. Bony orbit Walls ,margins Fissure, canal & foramina • Superior & inferior orbital fissure • optic canal • Supra orbital & infra orbital foramen • Anterior &posterior ethmoidal foramina • Nasolacrimal canal

27. Lacrimal apparatus • Lacrimal glands • Lacrimal canaliculi • Lacrimal sac • Tears CROCODILE TEARS SYNDROME

30. Nasal cavity D.N.S RUNNY NOSE NASAL POLYP

32. PARANASAL SINUSES ETHMOIDAL SINUS FRONTAL SINUS MAXILLARY SINUS SPHENOIDAL SINUS

34. 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 ear

36. Post triangle Ant triangle Hyoid bone Styloid process Muscles of the neck Platysma,sternocleidomastoid ,supra hyoid muscles Infra hyoid muscle Structure of the neck

38. Trachea Esophagus Thyroid gland Parathyroid gland Thyroid cartilage Vagus nerve Sympathetic trunk Thoracic duct Deep structure of neck

40. 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 Face

42. Layers Skin,close subcutaneous tissues Aponeurosis epicranalis Loose connective tissue Pericranium scalp

43. Temporal &infra temporal fossa

44. Muscles of mastication Temporalis Masseter Lateral pterygoid Medial pterygoid mastication

45. Parotitis mumps Parotid gland