The ethmoid bone (/ ˈɛθmɔɪd /; [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 (cube-shaped) bone is lightweight due to a spongy construction.

Oct 30, 2023 · 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.

Jan 8, 2023 · The ethmoid bone is a small unpaired bone, located in the midline of the anterior cranium – the superior aspect of the skull that encloses and protects the brain. The term ‘ethmoid’ originates from the Greek ‘ ethmos’, meaning sieve. This …

Apr 23, 2022 · 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. It is located in the center of the skull, specifically at the roof of the nose, between the two orbits.

Jul 24, 2023 · The ethmoid bone is an unpaired cranial bone that is a significant component of the upper nasal cavity and the nasal septum. The ethmoid bone also constitutes the medial orbit wall.

Nov 20, 2024 · 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.

May 11, 2024 · The ethmoid bone is a single midline facial bone that separates the nasal cavity from the brain and is located at the roof of the nose and between the orbits. It is a cubical shape and is relatively lightweight because of its spongy construction and air-filled sinuses. It contributes to the anterior cranial fossa.

Jul 23, 2020 · The ethmoid bone or os ethmoidal is a singular (unpaired), irregular, highly perforated bone of the cranium located between the eye sockets and running back to the frontal lobe of the brain. Ethmos means sieve in Greek which indicates this bone’s many perforations.

Dec 12, 2023 · 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. Situated at the center of the skull, precisely at the roof of the nose, between the two orbits.

The ethmoid bone, shaped like a cube, sits at the front of the skull and connects with surrounding bones. It plays a key role in forming the inner walls of the eye sockets, the nasal septum, and both the roof and sidewalls of the nasal cavity.