Posterior Fossa Flashcards
Bounded anteriorly by the clivus-basisphenoid above and basiocciput below
Brainstem
What is the function of the midbrain
Associated with vision Hearing Motor control Sleep/wake arousal Temperature regulation
What are the 4 rounded prominences seen at the level of the midbrain
Corpora quadrigrmini
At what level can the midbrain be seen
At the level of the circle of Willis
Function of the pons
Serves as a message station
Helps relay messages from the cortex and cerebellum
Superior Modality used for PONS
MRI
Ridges on each side of the ventral median fissure formed by
Pyramidal fibers
Pyramid
Function of the medulla oblongata
Autonomic CVS, Respi and heart rate, BP and breathing
This is the most inferior part of the fourth ventricle
Obex
Function of the cerebellum
Muscle coordination, regulation of muscle tone and posture
What are the connections of the cerebellar peduncles
Superior - midbrain
Middle - pons
Inferior - medulla