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ethmoid

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia, Hutchinson 0.01 sec.
ethmoid /eth·moid/ (eth´moid)
1. sievelike; cribriform.
2. the ethmoid bone; see Table of Bones. .ethmoi´dal

eth·moid (thmoid) or eth·moi·dal (th-moidl)
adj.
Resembling a sieve.
n.
The ethmoid bone.

ethmoid
[eth′moid]
Etymology: Gk, ethmos, sieve, eidos, form
1 pertaining to the ethmoid bone.
2 having a large number of sievelike openings.

ethmoid [eth´moid]
1. sievelike; cribriform.

ethmoid (ethˑ·moid),
n the very thin bone structure of the nose, through which the ethmoid sinuses and other neural structures pass.
Enlarge picture
Ethmoid.

ethmoid
1. sievelike; cribriform.
2. the ethmoid bone.

ethmoid bone
the sievelike bone that forms a roof for the nasal fossae and part of the floor of the rostral cranial fossa. See also Table 10.
ethmoid sinus
see concha.


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Ethmoid sinuses are on either side of your nose but further back in your skull.
1,2) In the normal anatomic situation, the secretions then empty into the ethmoid infundibulum and pass through the hiatus semilunaris into the middle meatus, then along the lateral nasal wall and over the inferior turbinate posteriorly into the nasopharynx.
Frontal sinusitis occurs from the inflammation of either frontal or ethmoid sinuses.
 
 
 
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