1. ethmoid bone (plural ethmoid bones) The bone of the skull between the eyes and at the roof of the nose. Ethmoid sinusitis is an uncomfortable condition that can be treated as well as prevented. It is roughly the size and shape of an ice cube, but is only a fraction as heavy. The ethmoid bone (from Greek ethmos, "sieve") is a bone in the skull that separates the nasal cavity from the brain.As such, it is located at the roof of the nose, between the two orbits.The cubical bone is lightweight due to a spongy construction. Orbital plate - Thin plate along lateral margin of ethmoid labyrinth - Forms part of medial wall of orbit . 2. ethmoid definition: 1. the bone that forms part of the nose and the eye sockets (= the bone around the eyes) 2. the…. ethmoid: Of, relating to, or being a light spongy bone located between the ocular orbits, forming part of the walls and septum of the superior nasal cavity, and containing numerous perforations for the passage of the fibers of the olfactory nerves. [8], This article incorporates text in the public domain from page 153 of the 20th edition of Gray's Anatomy (1918), The seven bones which articulate to form the, "Olfactory Dysfunction Predicts 5-Year Mortality in Older Adults", http://www.theregister.com/2006/11/17/the_odd_body_nose_compass/, https://en.wikipedia.org/w/index.php?title=Ethmoid_bone&oldid=992118228, Wikipedia articles incorporating text from the 20th edition of Gray's Anatomy (1918), Articles to be expanded from December 2013, Creative Commons Attribution-ShareAlike License, This page was last edited on 3 December 2020, at 16:19. Noun: 1. ethmoid bone - one of the eight bones of the cranium; a small bone filled with air spaces that forms part of the eye sockets and the nasal cavity The cells are variable in both size and number in the lateral mass of each of the ethmoid bones and cannot be palpated during an extraoral examination. the bone that forms part of the nose and the eye sockets (= the bone around the eyes) Thesaurus: synonyms and related words. Definition. bone in the skull that separates the nasal cavity from the brain. Meaning of ethmoid bone. The labyrinths are first developed, ossific granules making their appearance in the region of the lamina papyracea between the fourth and fifth months of fetal life, and extending into the conchæ. ethmoid, ethmoid bone(noun) one of the eight bones of the cranium; a small bone filled with air spaces that forms part of the eye sockets and the nasal cavity Wiktionary(0.00 / … Siebbein { noun neuter } bone of the skull between the eyes and at the roof of the nose. Meaning of ethmoid in English. ethmoid bone translation in English-Latin dictionary. Humans have a similar magnetite deposit (ferric iron), but it is believed to be vestigial.[7]. 2. Ethmoid: 1. Translations . The ethmoid bone is … Definition. n. A light spongy bone located between the eye sockets, forming part of the walls and septum of the superior nasal cavity, and containing perforations for the passage of olfactory nerve fibers. Medical Author: William C. Shiel Jr., MD, FACP, FACR; Ethmoid bone: An irregularly shaped, spongy bone that provides the floor of the front part of the skull and the roof of the nose. The ethmoid fracture can produce bone fragments that penetrate the cribriform plate. This injury is not fatal, but can be dangerous, as when a person fails to smell smoke, gas, or spoiled food. antonym.com Word of the Day: bugbear. Sinus cavities which are contained in the ethmoidal labyrinth help to serve many important functions including… an irregularly shaped bone lying between the orbital plates of the frontal bone and anterior to the sphenoid bone of the cranium; it consists of two lateral ethmoidal labyrinths of thin plates … The ethmoid bone is a small, light skull bone not visible from the outside in the region of the skull base or the tectum of the nose. ethmoid: [ eth´moid ] 1. sievelike; cribriform. ethmoid. 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. Noun . ethmoid bone . ethmoid - one of the eight bones of the cranium; a small bone filled with air spaces that forms part of the eye sockets and the nasal cavity ethmoid bone bone , os - rigid connective tissue that makes up the skeleton of vertebrates Definition. Meaning of ethmoid. The sphenoid bone of the skull base is one of the most complex bones of the body. translation and definition "ethmoid bone", English-German Dictionary online. ¹ . 1 Definition. • ETHMOID BONE (noun) The noun ETHMOID BONE has 1 sense:. The ethmoid bone is made up of four main parts. Fracture of the lamina papyracea, the lateral plate of the ethmoid labyrinth bone, permits communication between the nasal cavity and the orbit on the same side of the body through the inferomedial orbital wall, resulting in orbital emphysema. 1. ethmoid bone - one of the eight bones of the cranium; a small bone filled with air spaces that forms part of the eye sockets and the nasal cavity. 2 Anatomy. A reduction in the ability to taste is also a side effect because it is based so heavily on smell. Information and translations of ethmoid bone in the most comprehensive dictionary definitions resource on the web. The bone of the skull between the eyes and at the roof of the nose. Definition. As an adjective: spongy or sievelike. The ethmoid bone consists of two masses of thin plates enclosing air cells and looks like a sieve. Copy to clipboard; Details / edit; wikidata. The ethmoid sinus (one of six sets of sinuses) is part of the paranasal sinus system and is located between the nose and eyes. The ethmoid bone is one of the bones that make up the orbit of the eye. This is reflected in its lightweight, spongy structure. These openings let opportunistic bacteria in the nasal cavity enter the sterile environment of the central nervous system (CNS). The porous fragile nature of the ethmoid bone makes it particularly susceptible to fractures. It consists of a horizontal plate, a perpendicular plate, and two lateral labyrinths. What does ethmoid bone mean? It is located at the roof of the nose, between the two orbits. Definition of ethmoid bone in the Medical Dictionary by The Free Dictionary. 3. The cubical bone is lightweight due to a spongy construction. (anatomy, bone) Of or relating to the ethmoid bone. The ethmoid bone consists of two masses of thin plates enclosing air cells and looks like a sieve. [3] The ethmoid has three parts: cribriform plate, ethmoidal labyrinth, and perpendicular plate. The cribriform plate has sieve-like holes that allow the olfactory nerves to locate in your nose so that you can experience your sense of smell, and also plays a role in your ability to taste. Ethmoid bone is exceedingly light and spongy bone that provides the floor of the front part of the skull and the roof of the nose. 2. ethmoid bone . Ethmoid: 1. It is located at the roof of the nose, between the two orbits. Medical Definition of Ethmoid bone. What does ethmoid mean? How to use a word that (literally) drives some pe... Do you know these earlier meanings of words? 1. ‘On each side of the groove the dura is rough, because of its attachment to the cribriform plate of the ethmoid bone and because it is pierced by numerous olfactory nerve bundles.’ ‘At least 1 percent of persons in the population have symptomatic nasal polyps and up to 42 percent may have asymptomatic polyps on careful examination of the middle meatus, middle turbinate and ethmoids.’ Synonym.com is the web's best resource for English synonyms, antonyms, and definitions. Article by Ruth Kulmala-Repp. The term ‘ethmoid’ originates from the Greek ‘ethmos’, meaning sieve. The ethmoid sinus (one of six sets of sinuses) is part of the paranasal sinus system and is located between the nose and eyes. The ethmoid bone forms part of the cranial cavity, the nasal cavity and the orbits. 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