It is very small at birth and becomes walnut-sized during puberty. Ethmos means sieve in Greek which indicates this bone’s many perforations. [3] The ethmoid has three parts: cribriform plate, ethmoidal labyrinth, and perpendicular plate. ¹ Source: wiktionary.com. ethmoid bone translation in English-Latin dictionary. French ethmoïde, from Greek ēthmoeidēs, literally, like a strainer, from ēthmos strainer. Definition of ethmoid in the Definitions.net dictionary. Each bone articulates (joins) with neighboring bones. Enrich your vocabulary with the English Definition dictionary ‘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.’ At birth, the bone consists of the two labyrinths, which are small and ill-developed. This is reflected in its lightweight, spongy structure. Definition of Ethmoid bone. It is located at the roof of the nose, between the two orbits. Translations . The term ‘ethmoid’ originates from the Greek ‘ethmos’, meaning sieve. 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. The porous fragile nature of the ethmoid bone makes it particularly susceptible to fractures. Ethmoid bone separates the ORBIT from the ETHMOID SINUS. ethmoid. The bone consists of: a perpendicular plate - a thin lamina which runs ventrally from the cribriform plate and forms part of the nasal septum. (anatomy, bone) Of or relating to the ethmoid bone. From the Greek ethmos, sieve + eidos, resemblance = like a sieve. Both Grant (1944) and Moffat (1987) have provided useful descriptions of the human ethmoid bone. Siebbein { noun neuter } bone of the skull between the eyes and at the roof of the nose. 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 / … Meaning of ethmoid bone. 1 Definition. The ethmoid bone consists of two masses of thin plates enclosing air cells and looks like a sieve. 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. The development of the ethmoidal cells begins during fetal life. 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. Dictionary entry overview: What does ethmoid bone mean? Synonym: ethmoidal Ethmoid: 1. The form of the sphenoid bone is often referred to as bat-shaped, wasp-shaped, or butterfly-shaped. It is located at the roof of the nose, between the two orbits. Ethmoid Bone. [3] It contributes to the medial wall of the orbit, the nasal cavity, and the nasal septum. Definition (NCI_CDISC) A light and spongy bone that is cubical in shape. The ethmoid bone is … Learn more. Orbital plate - Thin plate along lateral margin of ethmoid labyrinth - Forms part of medial wall of orbit . At least a part of the human ethmoid bone can be seen from the outside of the skull. 3. 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. Orbital plate - Thin plate along lateral margin of ethmoid … The ethmoid bone consists of two masses of thin plates enclosing air cells and looks like a sieve. 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. It is an unpaired bone with many foramina (holes) and grooves that allow nerves and blood vessels to pass through or along it. It consists of four parts: a horizontal or cribriform plate, forming part of the base of the cranium; a perpendicular plate, constituting part of the nasal … Ethmoid definition, of or relating to a bone at the base of the cranium and the root of the nose, containing numerous perforations for the filaments of the olfactory nerve. The cribriform plate forms the roof of the nasal cavity and also contributes to formation of the anterior cranial fossa,[4] the ethmoidal labyrinth consists of a large mass on either side of the perpendicular plate, and the perpendicular plate forms the superior two-thirds of the nasal septum. The amoeba follows the olfactory nerve fibers through the cribriform plate of the ethmoid bone into the skull. The ethmoid bone is a singular porous bone that makes up the middle area of the viscerocranium and forms the midfacial region of the skull. As an adjective: spongy or sievelike. Noun. 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 Ethmoid Bone. The cribriform plate is ossified partly from the perpendicular plate and partly from the labyrinths. 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. Type: noun; Copy to clipboard; Details / edit; omegawiki. The bone of the skull between the eyes and at the roof of the nose. From the Greek ethmos, sieve + eidos, resemblance = like a sieve. the bone that forms part of the nose and the eye sockets (= the bone around the eyes) Thesaurus: synonyms and related words. The ethmoid bone consists of two masses of thin plates enclosing air cells and looks like a sieve. This could occur by hitting the dashboard in a car crash or landing on the ground after a fall. Definition. The ethmoid bone consists of two masses of thin plates enclosing air cells and looks like a sieve. 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.. How to use a word that (literally) drives some pe... Do you know these earlier meanings of words? As an adjective: spongy or sievelike. The ethmoid bone is made up of four main parts. The sphenoid bone of the skull base is one of the most complex bones of the body. Medical Definition of Ethmoid bone. As an adjective: spongy or sievelike. The cubical bone is lightweight due to a spongy construction. ethmoid bone . as modifier ‘ossification in the ethmoid … 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. [3] Between the orbital plate and the nasal conchae are the ethmoidal sinuses or ethmoidal air cells, which are a variable number of small cavities in the lateral mass of the ethmoid.[5][6]. This is reflected in its lightweight, spongy structure. Humans have a similar magnetite deposit (ferric iron), but it is believed to be vestigial.[7]. Information and translations of ethmoid in the most comprehensive dictionary definitions resource on … It is roughly the size and shape of an ice cube, but is only a fraction as heavy.
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