BMS Anatomy Asynchronous Lecture 4 PDF

BMS Anatomy Asynchronous Lecture 4 Introduction to the Skull and Cranium Presented By: Dr. K. Lumsden; [email protected] (Toronto Campus) Moore's Clinically Oriented Anatomy, by Arthur F. Dalley II PhD FAAA (Author), Anne M. R. Agur BSc (OT) MSc PhD FAAA (Author), 9th ed. Dr. M. Doroudi; mdoroudi@cc...

BMS Anatomy Asynchronous Lecture 4 Introduction to the Skull and Cranium Presented By: Dr. K. Lumsden; [email protected] (Toronto Campus) Moore's Clinically Oriented Anatomy, by Arthur F. Dalley II PhD FAAA (Author), Anne M. R. Agur BSc (OT) MSc PhD FAAA (Author), 9th ed. Dr. M. Doroudi; [email protected] Boucher Campus) Head Chapter: Pages 840 – 854 Skull (Cranium) Paired Neurocranium (Brain Box) Parietal bone Temporal bone Unpaired Frontal bone Occipital bone Sphenoid bone Ethmoid bone Paired Viscerocranium (Facial Skeleton) Lacrimal bone Nasal bone Zygomatic bone Maxilla Inferior nasal concha Palatine bone Unpaired Mandible Vomer Occipital (Posterior) Aspect of the Skull Superior Aspect of the Skull External Surface of the base of the Skull External Surface of the base of the Skull (continue) Internal Surface of Cranial Base ANTERIOR CRANIAL FOSSA MIDDLE CRANIAL FOSSA POSTERIOR CRANIAL FOSSA POSTERIOR CRANIAL FOSSA Use this slide to practice for the openings at the cranial base and the structures passing through. Try to name the openings and name the anatomical structures passing through them. 20 Additional Images for Clarification & Practice *Not part of recording * FORAMEN BONE ANATOMY CONTENTS OLFACTORY FORAMEN Ethmoid Cribiform plate – many foramen CN 1 OPTIC FORAMEN Sphenoid Between lesser wings (L and CN II R) FORAMEN ROTUNDUM Sphenoid Just posterior to superior orbital fissure CN V2 FORAMEN OVALE Sphenoid Greater wing of sphenoid CN V3 FORAMEN SPINOSUM Sphenoid Sits just lateral to foramen ovale branch of CN V SUPERIOR ORBITAL FISSURE Sphenoid Between lesser and greater wings CN III, IV and VI V 1 branch FORAMEN LACERUM Where sphenoid meets Covered by cartilage temporal and occipital bones Sphenoid 21 FORAMEN BONE ANATOMY CONTENTS CAROTID CANAL External temporal bone Middle cranial fossa Internal carotid artery HYPOGLOSSAL CANAL Occipital bone Posterior cranial fossa CN XII INTERNAL AUDITORY MEATUS Temporal Petrous portion of temporal CN VII AND VIII bone EXTERNAL AUDITORY MEATUS Temporal Anterior to mastoid process STYLOMASTOID FORAMEN Temporal Between mastoid and styloid CN VII process JUGULAR FORAMEN Between occipital and temporal bones Posterior cranial fossa CN IX, X, XII Internal jugular vein FORAMEN MAGNUM Occipital Bordered by occipital condyles Brainstem (medulla) Vertebral arteries Spinal portion of CN IX Open canal for sound waves 22 23 24 25 26 27 28