Ethmoid bone — localization?
Unpaired, anterior skull base, joins frontal, nasal, sphenoid bones.
Ethmoid — role?
Supports nasal septum, transmits olfactory nerves.
Ethmoid bone — parts?
Cribriform plate, perpendicular plate, lateral masses, conchae.
Sphenoid — shape?
Butterfly-shaped at skull base.
Cribriform plate — role?
Permits olfactory nerve passage via foramina.
Temporal — function?
Protects ear, forms skull base.
Perpendicular plate — function?
Forms superior nasal septum.
Cribriform plate — transmits?
Olfactory nerves.
Lateral masses — contain?
Ethmoidal air cells and scroll-shaped conchae.
Sella turcica — houses?
Pituitary gland.
Ethmoidal cells — location?
Within lateral masses; air sinuses.
Temporal bone parts?
Squamous, mastoid, petrous.
Ethmoidal conchae — types?
Superior and middle conchae.
Distinctive feature of sphenoid?
Body with sella turcica.
Sphenoid bone — location?
Central skull base, behind orbits.
Sphenoid main parts?
Body, lesser wings, greater wings, pterygoid processes.
Sphenoid body — contains?
Sphenoidal sinuses.
Sphenoid wings — functions?
Form anterior boundaries; contain foramina.
Pterygoid processes — features?
Medial/lateral plates, pterygoid notch, fossa.
Sphenoid — articulations?
With all neurocranium bones.
Sphenoid — sella turcica?
Houses pituitary gland.
Temporal bone — location?
Lateral sides of skull, near ear.
Main parts of temporal?
Squamous, mastoid, petrous.
Mastoid process — contains?
Mastoid air cells.
Petrous part — houses?
Inner ear structures.
Temporal — features?
Zygomatic process, mandibular fossa, foramina.
Stylomastoid foramen — transmits?
Facial nerve (CN VII).
Carotid canal — purpose?
Passage for internal carotid artery.
Ethmoid — role in nasal septum?
Forms superior nasal septum.
Testez vos connaissances avec un QCM de 17 questions sur Crani facial Bones.
1. Which feature of the ethmoid bone enables the passage of the olfactory nerves?
2. Which bone is responsible for transmitting the olfactory nerves?
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Anatomie
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