Skull Fractures Flashcards Preview

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Flashcards in Skull Fractures Deck (17):
1

Op what are the markings on the temporal bone for

Superior and inferior nuchal lines for muscle attachment

2

What are the sutures of the skull cap

Sagittal
Coronal
Lambda
Bregma
H suture at Pterion

3

What are the processes next to the foramen magnum

Occipital condyles used for attachment of C1

4

What is the crubiform plate

Part of the ethmoid bone
Perferrated bone where refractory tract sits swell to form refractory bulb (smell)

5

What are the 3 cranial fossa divisions

Anterior
Middle
Posterior

6

What are dural venous sinuses

Spaces/channels for venous blood not a vein or vessel
For drainage of the cranial cavity

7

What's neurocranium and viscerocranium

Neurocranium - bones of the cranial vault
Viscerocranium - bones of the face
Division above orbits and below the ears

8

What are paranasal sinuses

Air filled spaces
Cantered on nasal cavity
Maxillary
Frontal
Sphenoid
Ethmoid

9

What artery runs beneath the Pterion

The middle meningeal artery

10

What are 4 fractures that could occur on the skull

Basilar - damage bone that is thick
Comminuted- various pieces of bone created
Depressed - small pieces impacts inwards
Linear - strong force
Counterforce - doesn't damage at site of sting bone but travels and breaks a delicate area

11

What is a buttress

Thicker portions of bones which transmit forces around weaker regions of the cranium
Masticatory plates
Zygomatic arch
Lateral orbital margin
Frontonasal
Occipital

12

What are the 3 Le fort fractures

I - across maxilla
II - thro maxilla base orbit and nasal
III - most severs, through ethmoid, sphenoid, Nasal (see cranial vault and facial skeleton)

13

What are the most common fracture of the mandible

At condylar and coronoid processes
2 at angle
One on body

14

What is C1and C2 called and what makes them anatomically different from other cervical vertebrae

C1 atlas - facet for Dens, anterior and posterior arch and no body, superior articulate facets for occipital condyles

C2 axis - odontoid process (dens) bifud, splarger spinous process

Both joint with a synovial pivot joint

15

Where dos the vertebral artery travel through

Transverse foramen

16

What is C7 called

Vertebra prominens

17

What are the openings of the
Mouth
Nose
Eyes
Anatomically called

Mouth - oral cavity
Nose - nasal aperture
Eyes - orbit