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The ethmoid bone is a singular porous cranial bone that makes up the middle area of the neurocranium and forms the midfacial region of the skull. It contributes to the formation of the orbit, nasal cavity, nasal septum and the floor of the anterior cranial fossa.
The ethmoid bone is a cube-shaped bone located in the center of the skull between the eyes. It helps form the walls of the eye socket, or orbital cavity, as well as the roof, sides, and interior of the nasal cavity and helps with the sense of smell, protection of the eyeball, and keeping harmful particles from entering through the nose.
The anatomical position and relations of the ethmoid bone. The ethmoid bone is made up of three parts – the cribriform plate, the perpendicular plate, and the ethmoidal labyrinth. The cribriform plate forms the roof of the nasal cavity.
The ethmoid bone is an anterior cranial bone located between the eyes. [3] It contributes to the medial wall of the orbit, the nasal cavity, and the nasal septum. [3] The ethmoid has three parts: cribriform plate, ethmoidal labyrinth, and perpendicular plate.
The ethmoidal bone is a small solitary cranial bone that separates the nasal cavity from the brain. The bone derived its name from the Greek term ‘ethmos’, which means sieve, owing to its porous and spongy texture.
The ethmoid bone is a small bone with a cuboidal structure that forms the lateral boundaries of the orbit, the anterior cranial fossa superiorly, and the nasal cavities inferiorly. It is relatively light and has a spongy texture.
The ethmoid is a small unpaired cranial bone that separates the nasal cavity from the brain. The bone got its name from the Greek’ ethmos’, meaning sieve, due to its lightweight and spongy texture.
Ethmoid Bone Anatomy. Ethmoid bone anatomy is quite complicated. It is one of eight cranial bones, two of these – the parietal and temporal bones – are paired; the others – the frontal, occipital, sphenoid, and ethmoid bones – are unpaired. There are four main ethmoid bone parts.
Wondering about the anatomy of the ethmoid bone? This is the video for you! Once you’re clued up, why not test yourself with a quiz?
Discover the key features, anatomical relations, ossification, and potential variations of the ethmoid bone.