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Neurocranium
exam 2
12
Anatomy
Undergraduate 3
10/11/2008

Additional Anatomy Flashcards

 


 

Cards

Term

 

 

 

Frontal Bone

Definition

Anterior portion of cranium; the forehead and roofs of the orbits

 
Orbits
Anterior cranial fossa
Glabella
Frontal sinuses
Term

 

 

 

Orbits

Definition

bony recesses that contain the eyes. 7 bones: frontal, maxilla, lacrimal, ethmoid, sphenoid, zygomatic, and palatine bones.

 

Term

 

 

 

Glabella

Definition

1. The area between the eyebrows, just above the nose. 2. The corresponding area on the frontal bone between the eyebrow ridges.

 

Term

 

 

 

Parietal Bone (2)

Definition

Large,curved, rectangular bones forming superior and lateral aspects of the skull; largest sutures occur at parietal bone articulation points.

 

Term

 

 

 

 

Occiptial Bone

Definition

posterior wall and base of the skull

 internally forms walls of posterior cranial fossa
 foramen magnum
occipital condyles
external occipital protuberance (“occiput”).

Term

 

 

 

Temporal Bones (2)

Definition
Inferolateral aspects of the skull and partial cranial floor; four regions are squamous, tympanic, mastoid, petrous; zygomatic process and arch, mandibular fossa, external acoustic meatus, styloid process, mastoid process, middle cranial fossa, middle/inner ear cavities
Term

 

 

 

Sphenoid Bone

Definition

Keystone of cranium that forms central wedge; greater/lesser wings, pterygoid processes.

Sella turcica (hypophyseal fossa)
Optic canals, superior orbital fissure

Orbital wall (lateral)


Term

 

 

 

Ethmoid Bone

Definition

Complex shaped, lies between sphenoid and nasal bones,most deeply situated bone of the skull;
Cribiform plate, Crista galli (dura mater attachment),Perpendicular plate, Superior/middle nasal conchae, Orbital wall (medial)

 

Term

 

 

 

Coronal Suture

Definition

 

 

parietal bones meet with frontal bone anteriorly.

 

Term

 

 

 

Sagittal Suture

Definition

 

 

right and left parietals meet superiorly at cranial midline.

 

Term

 

 

 

Lambdoid Suture

Definition

 

 

the parietal bones meet the occipital bone posteriorly.

 

Term

 

 

 

 

Squamous Suture

Definition

 

 

 

parietal and temporal bone meet on lateral aspect of skull.

 

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