Facial Bones Flashcards
Which Bones make up the Anterior Cranial fossa
Frontal Bone, ethmoid ad lesser wing of the sphenoid
Which Bones make up the Middle Cranial Fossa
Greater Wing of Sphenoid, and Temporal
Which bones make up the posterior cranial fossa
Occipital Bone
What margins are created by the Frontal Bone
Supraorbital Margin
Which Bone makes of the superior and lateral aspects of the calvaria
Parietal
What are the important landmarks of the occipital bone
Foramen Magum - spinal cord
Occiptal condyles
Hypoglossal canal - CN 12
What are the major landmarks of the Temporal Bone
Squamous - most superior
Petrous Region- posterior
Mastoid Process
External acoustic Meatus - ear canal
Styloid process
Mandibular fossa
Zygomatic process
What are the openings in the Temporal Bone
Carotid Canal- inferior view anterior to jugular foreman for carotid artery
Stylomasoid foramen - inferior view most lateral, CN 7 facial nerve
Internal acoustic meatus - CN 7 and CN 8 vestibulocochleur
Jugular foramhen, internal jugular and CN 9,10,11
What important landmark is located in the sphenoid bone
Sella turicica - holds the pititary gland
WHat passageways are located in the sphenoid bone
Superior orbital fissure- eye nerves
Optical canal - CN 2 optic nerve
Forament rotundum - for CN 5
Foramen ovale for CN 5
Foramen spinosum - middle meningeal artery
What are major landmarks of ethmoid bone
contributes to medial orbital walls
Crista galli- attaches dura matter
Cribiform plate - olfactory foramina for olfactory nerve
What are the major landmarks of the maxilla
Forms hard palate
alvelor process holds upper teeth
Zygomatic process
What are the major landmarks of the Zygomatic bones
Zygomatic arch
Inferolateral margins of orbits
WHat area does the Vomer bone create
Lower part of nasal septum
What area do the Palatine bones create
Posterior hard palate
Nasa cavity posterolateral walls