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.

Nov 21, 2025 · 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 …

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.

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 …

Nov 20, 2024 · The ethmoid bone, located between the eyes, plays a crucial role in forming parts of the eye socket and nasal cavity. The ethmoid bone helps protect the eyeball, is involved in …

Jun 1, 2025 · The ethmoid bone is a lightweight, spongy structure that plays a central role in the skull, bridging the cranial and facial regions through its contributions to the nasal cavity, orbits, …

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 …

Explore the Ethmoid Bone — including its structure, location, and function in the human body.

Aug 18, 2025 · The ethmoid bone provides structural support to the central facial skeleton. It forms part of the framework for the nasal cavity, the orbital walls, and the anterior cranial …

Mar 12, 2025 · Ethmoid Sinus Your ethmoid sinuses are the paranasal sinuses located between your eyes, just behind the bridge of your nose. They contain several smaller air-filled cavities …