Ethmoid — location?
Unpaired anterior skull base bone.
Cribriform plate — role?
Allows passage of CN I.
Olfactory foramina — function?
Transmit olfactory nerves.
Perpendicular plate — location?
Forms superior part of nasal septum.
Lateral masses — contents?
Ethmoidal air cells (sinuses).
Ethmoidal air cells — number?
3 to 18 in the lateral masses.
Sphenoid — location?
Central skull base, behind eyes.
Sphenoid sinus — features?
Paired air cavities, separated by a septum.
Sella turcica — houses?
Pituitary gland.
Sphenoid foramina — examples?
Rotundum, ovale, spinosum.
Temporal squamous part — role?
Attaches temporalis muscle.
Temporal mastoid part — contains?
Mastoid air cells.
Temporal petrous part — contains?
Inner ear structures.
Zygomatic process — role?
Articulates with zygomatic bone.
Mastoid process — function?
Muscle attachment; contains air cells.
Internal acoustic meatus — transmits?
Facial and vestibulocochlear nerves.
Carotid canal — role?
Passage for internal carotid artery.
Stylomastoid foramen — transmits?
Facial nerve (CN VII).
Petrous bone — key feature?
Houses inner ear and nerves.
Temporal bone parts — names?
Squamous, mastoid, petrous.
Ethmoid bone — role?
Forms part of nasal cavity and orbit.
Sphenoid bone — function?
Connects skull bones, houses pituitary.
Temporal bone — structures?
Contains ear structures, neurovascular foramina.
Cribriform plate — purpose?
Allows olfactory nerve fibers passage.
Sella turcica — role?
Houses and protects the pituitary gland.
Foramina of sphenoid — transmit?
Cranial nerves V2, V3, vessels.
Mastoid process — contains?
Air cells, attaches neck muscles.
Answer 17 questions on Cranial and Facial Bones Anatomy.
1. Which structure of the ethmoid bone serves as the attachment point for the falx cerebri?
2. Which structure within the cribriform plate of the ethmoid bone allows the passage of the olfactory nerve fibers?
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