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Dictionary » E » Ethmoid bone

Ethmoid bone

Ethmoid bone

An irregularly shaped bone lying between the orbital plates of the frontal and anterior to the sphenoid bone; it consists of two lateral masses of thin plates enclosing air cells, attached above to a perforated horizontal lamina, the cribriform plate, from which descends a median vertical or perpendicular plate in the interval between the two lateral masses; the bone articulates with the sphenoid, frontal, maxillary, lacrimal, and palatine bones, the inferior nasal concha, and the vomer; it enters into the formation of the anterior cranial fossa, the orbits, and the nasal cavity.

Synonym: os ethmoidale.


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Re: The Axial Skeleton Helllllp!!??

relatively weak ethmoid bone full of holes before they enter your brain. the reason for the holes in the bone is that the olfactory ...

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by ahm_k1
Fri Mar 21, 2008 3:17 pm
 
Forum: Human Biology
Topic: The Axial Skeleton Helllllp!!??
Replies: 11
Views: 14274

Re: The Axial Skeleton Helllllp!!??

... clearly from anatomy textbooks. the main importance of the sphenoid bone that the pituitary gland lies over the sphenoid bone. the other important ... artery - branch of internal carotid artery) travel through these. the ethmoid bone forms the part of the eye socket and parts of the nose. it also ...

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by Revenged
Mon Feb 25, 2008 3:53 pm
 
Forum: Human Biology
Topic: The Axial Skeleton Helllllp!!??
Replies: 11
Views: 14274

The Axial Skeleton Helllllp!!??

what bone is single irregular bat shaped bone forming part of the cranial floor i have looked in my book and have found several answers do not know which is correct ethmoid or sphenoid or is it both

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by michelle4
Fri Feb 22, 2008 4:47 am
 
Forum: Human Biology
Topic: The Axial Skeleton Helllllp!!??
Replies: 11
Views: 14274


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