Posterior cranial fossa Flashcards Preview

Spinal anatomy quiz questions > Posterior cranial fossa > Flashcards

Flashcards in Posterior cranial fossa Deck (7):
1

What forms the roof of the posterior cranial fossa?

the tentorium cerebelli

2

What part of the cerebrum occupies the posterior cranial fossa?

none; the tentorium cerebelli separates the cerebrum into a space above the posterior cranial fossa

3

What part of the central nervous system occupies the posterior cranial fossa?

the cerebellum, pons and medulla oblongata

4

What are the contents of the jugular foramen?

the jugular bulb, the inferior petrosal sinus, the tympanic body/tympanic glomus or jugular body/jugular glomus, cranial nerves IX (glossopharyngeal), X (vagus) and XI (spinal accessory)

5

What is the jugular bulb?

the venous expansion between the sigmoid dural venous sinus and the internal jugular vein

6

What is the function of the jugular body/jugular glomus?

a chemoreceptive organ the monitors hypoxia, hypercapnia and increases in the hydrogen ion

7

What will the hypoglossal canal communicate with?

the posterior cranial fossa and the neck

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