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  2. Ethmoid bone - Wikipedia

    en.wikipedia.org/wiki/Ethmoid_bone

    The ethmoid bone (/ ˈ ɛ θ m ɔɪ d /; [1] [2] from Ancient Greek: ἡθμός, romanized: hēthmós, lit. 'sieve') is an unpaired bone in the skull that separates the nasal cavity from the brain. It is located at the roof of the nose, between the two orbits. The cubical bone is lightweight due to a spongy construction.

  3. Ethmoidal spine - Wikipedia

    en.wikipedia.org/wiki/Ethmoidal_spine

    The superior surface of the body of the sphenoid bone (Fig. 145) presents in front a prominent spine, the ethmoidal spine, for articulation with the cribriform plate of the ethmoid; behind this is a smooth surface slightly raised in the middle line, and grooved on either side for the olfactory lobes of the brain.

  4. Base of skull - Wikipedia

    en.wikipedia.org/wiki/Base_of_skull

    There are five bones that make up the base of the skull: Ethmoid bone; Sphenoid bone; Occipital bone; Frontal bone; Temporal bone; Exobasis. Sinuses. Occipital sinus;

  5. Endochondral ossification - Wikipedia

    en.wikipedia.org/wiki/Endochondral_ossification

    Endochondral ossification is responsible for development of most bones including long and short bones, [4] the bones of the axial (ribs and vertebrae) and the appendicular skeleton (e.g. upper and lower limbs), [5] the bones of the skull base (including the ethmoid and sphenoid bones) [6] and the medial end of the clavicle. [7]

  6. Basilar skull fracture - Wikipedia

    en.wikipedia.org/wiki/Basilar_skull_fracture

    It is defined as a fracture of one or more of the temporal, occipital, sphenoid, frontal or ethmoid bone. [1] Basilar skull fractures are divided into anterior fossa, middle fossa and posterior fossa fractures. [1] Facial fractures often also occur. [1] Diagnosis is typically by CT scan. [1]

  7. Frontoethmoidal suture - Wikipedia

    en.wikipedia.org/wiki/Frontoethmoidal_suture

    The frontoethmoidal suture is the suture between the ethmoid bone and the frontal bone. It is located in the anterior cranial fossa. References

  8. Sphenoethmoidal suture - Wikipedia

    en.wikipedia.org/wiki/Sphenoethmoidal_suture

    The sphenoethmoidal suture is the cranial suture between the sphenoid bone and the ethmoid bone. It is located in the anterior cranial fossa. External links

  9. Crista galli - Wikipedia

    en.wikipedia.org/wiki/Crista_galli

    The crista galli (Latin: "crest of the rooster") is a wedge-shaped, vertical, midline upward continuation of the perpendicular plate of the ethmoid bone of the skull, [1] projecting above the cribriform plate [2] into the cranial cavity. It serves as an attachment for the membranes surrounding the brain. [1]