Flashcards: Crani facial Bones — 29 cards

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.