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Flashcards in Posterior cranial fossa Deck (7)
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What forms the roof of the posterior cranial fossa?

the tentorium cerebelli


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


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

the cerebellum, pons and medulla oblongata


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)


What is the jugular bulb?

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


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

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


What will the hypoglossal canal communicate with?

the posterior cranial fossa and the neck

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