Skull part 2

Coronal Suture Movement

Synarthrodic classification

Lambdoidal Suture Movement

Synarthrodic classification

Squamosal Suture Movement

Synarthrodic classification

Sagittal Suture Movement

Synarthrodic classification

1. Bregma - coronal to sagittal

2. Sagittal suture

3. Coronal suture

4. Squamosal suture

1. Lambdoidal Suture

2. Sagittal Suture

3. Lambda

Sphenoid Articulations

7

Ethmoid, Frontal, Occipital, Right and Left Parietal and Temporal

Occipital Articulations

5 skull +1

Sphenoid ,Right and Left Parietal, Right and Left Temporals, and C1

Parietal Articulations

5

Sphenoid, opposite Parietal, Frontal,Occipital, and Tempora

Frontal Articulations

4

Sphenoid, Ethmoid, Right and Left Parietal

Temporal

3

Sphenoid, Parietal and Occipital

Ethmoid

2

Sphenoid and Frontal

Lateral Sella Turcica

• IPL perpendicular to IR

• MSP parallel to IR

• IOML perpendicular to front edge or parallel to top edge

• CR ¾ inch (2 cm) anterior and ¾ inch (2 cm) superior to EAM

• Close collimation

• Sella turcica in profile

• Anterior and posterior clinoid processes superimposed

• Greater and lesser wings of sphenoid each superimposed

Trauma Skull

AP= OML perpendicular or raised 15 degrees for Caldwell

Which one is true PA & Caldwell

HOW DO YOU KNOW?

Left - True PA - Petrous ridges over supraorbital margin

Right - Caldwell - Petrous ridges over lower ⅓ of orbits

Label

1 PA

2 AP - Orbits are magnified

3 True PA

4 Rotation

a. Dorsum Sellae

B. Posterior clinoids

C. Petrous pyramids

D. Parietal bone

E. Occipital bone

F. Foramen Mangum

1. Foramen magnum

2. Posterior clinoid process

3. Dorsum sellae

A-EAM/Petrous pyramids
B-Mastoid portion cells
C-Occipital bone
D-Lambdoidal suture
E-Clivus (dont need to know)
F- Dorsum sellae
G-Posterior clinoid processes
H- Anterior clinoid processes
I-Vertex
J-Coronal Suture
K-Frontal bone
L-Orbital Plate
M-Cribiform Plate of ethmoid (dont need to know)
N-Sella Turcica
O-Body of Sphenoid