Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
10 Cards in this Set
- Front
- Back
Which bone is a delicate complex bone and has a presence in the cranial, nasal, and orbital spaces?
|
Ethmoid Bone
|
|
Which landmark from the Ethmoid Bone projects upward from the midline in front as a thing triangular process?
|
Crista Galli
|
|
Which plate is directed downward from under the surface of the cribriform plate and the upper anterior margin jons the frontal and nasal bones?
|
Perpendicular Plate
|
|
This plate serves as a partition seperating the cranial cavity from the nasal cavaties and also forms the roof of the nasal cavaties?
|
Cribriform plate
|
|
This is also known as the Ethmoid labyrinth and is lateral to each is an orbital plate which forms part of the orbit.
|
Ethmoid Sinuses
|
|
Medial surfaces of the ethmodial labyrinth comprise the lateral walls of the upper part of the nasal cavity and these are thin bones with scrolllike extensions.
|
superior and Middle Nasal Conchae
|
|
Is the most compliicated bone in the skull and articulates with all the bones of the cranium and is located at back of the skull behind the ethmoid and anterior to the foramen magnum and basilar portion of the occipital bone.This also has a body with two greater wings two lesser wings extending laterally from the sides of the body and two inferiorly directed pterygoyid processes and contains numerous foramina through which nerves and blood vessels pass.
|
Sphenoid Bone
|
|
These plates project downward from the greater wing and corpus of the sphenoid bone and is important points of attachment for muscles of mastication
|
lateral and medial pterygoid plates
|
|
This contains two sphenoid sinuses seperated by a thin midline septum and the anterior surface of the body forms the posterior wall of the nasal cavity. The midline crest that articulates with the perpendicular plate of the ethmoid bone and thus forms part of the bony nasal septum.
|
Body of the Sphenoid Bone
|
|
Opitc canal carries the II optic nerve adn the formamen rotundum provides the conduit for the maxillary nerve arising from the U trigeminal and the superior orbital fissure conveys optic nerves
|
Openings in the Sphenoid Bone
|