Intro to Cranial Nerves - Michaels

Question 1

Very general lcoation of each of the cranial nerves:

Answer 1

I: Telencephalon (Forebrain)
II: Diencephalon (Forebrain)
III, IV: Midbrain (Brainstem)
V, VI,VII,VIII: Pons (Brainstem) IX,X,XI, XII: Medulla (Brainstem)

Question 2

What is the specific fnction of each of the 3 cerebellar peduncles?

Answer 2

The inferior cerebellar peduncle:
Conveys spinal cord information to the cerebellum and interconnects the cerebellum with the vestibular nuc. and inferior olive.

The middle cerebellar peduncle:
The route by which information from the cerebrum gets to the cerebellum via the pontine nuclei.

The superior cerebellar peduncle:
Route by which the cerebellum gets information back to the cerebral cortex (via the thalamus).

Question 3

What is a patten generator?

Answer 3

An “autopilot” type of coordinated response

Activated when a command comes down from motor cortex to a collection of brainstem neurons