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Sphenoid and Ethmoid Bones
Sphenoid and Ethmoid Bone in Detail
15
Anatomy
Undergraduate 1
04/12/2016

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Cards

Term
Sphenoid Bone articulates with...
Definition

Frontal

Parietal

Ethmoid

Temporal

Zygomatic

Maxillae

Palatine

Occipital

Term
Sphenoid Bone Single or Paired?
Definition

Single

 

bat or butterfly like

 

Helps connect cranial skeleton to facial skeleton

 

Forms part of base and sides of skill and walls of each orbit

Term
Sphenoid Bone Contains...
Definition

Lesser Wing

Greater Wing

Pterygoid Process

Superior Orbital Fissure

Foramen Rotundum

Foramen Ovale

 

Term
Lesser Wing
Definition

Part of sphenoid bone

 

Base of orbital apex

Term
Greater Wing
Definition

Part of sphenoid bone

 

Divided into temporal and infratemporal surfaces by the infratemporal crest

Term
Ptergoid Process
Definition

Part of sphenoid bone

 

important attachment point for muscles of mastication

 

Contains lateral plate, Pterygoid fossa, and medial plate

Term
Superior Orbital Fissure
Definition

Part of sphenoid bone

 

Opthalmic Nerve passes through

Term
Foramen Rotundum
Definition

Part of sphenoid bone

 

Maxillary nerve passes through

Term

Foramen Ovale

 

Definition

Part of sphenoid bone

 

Mandibular nerve passes through

Term
Ethmoid Bone single or paired?
Definition

Single

 

Helps connect cranial skeleton to facial skeleton

 

Anterior to sphenoid

Term
Ethmoid Bone Articulates with...
Definition

Frontal

Sphenoid

Lacrimal

Maxilla

Vomer

Term
Ethmoid Bone Contains
Definition

Crista Galli

Criniform Plate

Perpendicular Plate

Superior Nasal Conchae

Middle Nasal Conchae

Orbital Plate

Ethmoidal Sinuses

Term
Cristi Galli
Definition

Part of ethmoid bone

 

Attachment for layers covering brain

 

Term
Cubiform Plate
Definition

Part of ethmoid bone

 

Horizontal plate perforated by foramina serving olfactory nerves

Term
Perpendicular Plate
Definition

Part of ethmoid bone

 

Midline verticle plate

 

Forms part of nasal septum

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