Brain stem (N6)

- only the 6 in SIX

Name the parts of the brainstem from superior to inferior

• Midbrain

• Pons

• Medulla oblongata

Which two parts of the brainstem combine to make the 4th ventricle

Pons and medulla oblongata

Is the 4th ventricle posterior or anterior of the brainstem regions

Posterior

Label the lateral view of the brainstem and ventricles 

What are cerebral peduncle made of and what do they travel to?

Made of white fibers and travel to brain stem

Where is the interpeduncular fossa

A gab in between the cerebral peduncles 

What is the basilar surface and what part of the brain stem is it part of?

Anterior surface of the brainstem and it is part of the pons of the brainstem (middle part)

What is the olive and where it is located 

Bumpy part of brainstem located on the anterior lateral side

Why is the olive bumpy

Because it has the olivary nucleus under it

Where is the pyramid located

On the anterior side of brainstem, part of the medulla oblongata

What happens at the dcussation of the pyramids

Crossing - the fibers that travel down the brainstem cross over here to the opposite side and travel down the spinal cord

LAbel the anterior part of the brainstem

What is the superior colliculi responsible for?

Relay for vision

What is the inferior colliculi responsible for?

Relay for auditory

Where superior cerebellar peduncle fibers go?

To and from midbrain and cerebellum

Where do the middle cerebellar peduncle fibers go?

Provide information side to side (r and l hemispheres) 

Where do the inferior cerebellar fibers go?

To the medulla

What do the two tubercles do on the posterior aspect of the brainstem?

Relay station for the body

Which tubercle is more posterior and which tubercle is more anterior

tubercle of nucleus gracilis is more posterior and tubercle of nucleus cuneatus is more anterior 

Label the posterior aspect of the brainstem