Ethmoid bone — location?
Unpaired, anterior skull base, connects with several bones.
Ethmoid — function?
Forms part of nasal septum, contains olfactory foramina.
Cribriform plate — role?
Allows passage of olfactory nerves (CN I).
Sphenoid — role?
Central skull base, houses sella turcica.
Perpendicular plate — function?
Forms superior part of the nasal septum.
Temporal — location?
Lateral skull sides, protects ear structures.
Lateral masses — contain?
Ethmoidal air cells (sinuses) and conchae.
Optic canal — content?
Transmits optic nerve and ophthalmic artery.
Sphenoid bone — location?
Central base of skull, behind ethmoid.
Sella turcica — houses?
Pituitary gland.
Sphenoid sella turcica — houses?
Pituitary gland.
Foramen rotundum — nerve?
Transmits CN V2.
Sphenoid foramina — include?
Rotundum (V2), ovale (V3), spinosum (middle meningeal).
Temporal bone features?
Mastoid process, petrous part, styloid process.
Temporal squama — attachment for?
Temporalis muscle.
Mastoid process — contains?
Mastoid air cells.
Petrous part — houses?
Cochlea, vestibular system, inner ear structures.
Carotid canal — Transmits?
Internal carotid artery.
Jugular fossa — contains?
Internal jugular vein.
Pterygoid processes — serve as?
Attachments for muscles of mastication.
Ethmoid's cribriform foramina — transmit?
Olfactory nerves (CN I).
Crista galli — role?
Attachment point for falx cerebri.
Perpendicular plate — part of?
Nasal septum.
Ethmoidal air cells — connect with?
Nasal cavity.
Sphenoid bone — articulations?
Frontal, ethmoid, occipital, temporal, parietals.
Temporal squama — features?
Zygomatic process, groove for artery.
Petrous part — features?
Cochlea, internal acoustic meatus, carotid canal.
Foramen rotundum — nerve transmitted?
V2 (maxillary nerve).
Foramen ovale — nerve transmitted?
V3 (mandibular nerve).
Mastoid process — identification?
Bony prominence behind ear, contains air cells.
Sphenoid wings — key openings?
Optic canals, foramen rotundum, ovale, spinosum.
Temporal bone — houses?
Ear structures, balance, hearing organs.
Pterygoid processes — topography?
Medial and lateral plates for muscle attachment.
Pon a prueba tus conocimientos con 19 preguntas sobre Cranial and Facial Bones Fundamentals.
1. Which part of the ethmoid bone forms the superior part of the nasal septum and contains grooves for nerves and vessels?
2. Which bone contains the cribriform plate, and what is its primary function?
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