Skull, Scalp and Face - Random

Question 1

A tear to the internal carotid w/in the cavernous sinus can?

Answer 1

• produce and AV fistula
• Arterial blood rushes into the cavernous sinus, forcing blood into contributing veins, especially the superior ophthalmic veins.

Question 2

Fractures to the cranial base causes?

Answer 2

• Can rip the dura causing a leakage of CSF into the neck.

- may tear the internal carotid w/in the cavernous sinus

Question 3

What does the posterior cranial fossa contain?

Answer 3

• Cerebellum
• Pons
• Medulla Oblongata

Question 4

What forms the boundary between the middle and posterior fossa?

Answer 4

• Petrous crests of temporal bones (laterally)

- Dorsum Sellae of the sphenoid (medially)

Question 5

What forms the posterior cranial fossa?

Answer 5

• Occipital bone

- Less by sphenoid and temporal bone

Question 6

What bones form the larger parts of the middle cranial fossa?

Answer 6

• > wings of sphenoid
• squamous part of temp bone (lat.)
• petrous part of temporal bone (post.)

Question 7

What bones form the anterior cranial fossa?

Answer 7

• Frontal bone
• Ethmoid bone
• Sphenoid body and

Question 8

How many cranial fossa are there? Name them.

Answer 8

3 total

-Anterior, middle, posterior