brain stem and cranial nerves

Question 1

All ascending and descending pathways pass

Answer 1

brainstem

Question 2

how is the cerebellum connected to the brainstem

Answer 2

3 cerebellar peduncles (white fibre tracts)

Question 3

how many crnaial nerves are in the brain stem

Answer 3

9

3-12 (excluding 11)

Question 4

brain stem internal strcutire

strating from posterior to anterior

Answer 4

tectum (roof)
Tegmentum
then 2 bases on the side

Question 5

what is between the tectum and tegmentum

Answer 5

ventricular system

Question 6

what strcutures can be seen when looking at the brainstem from posterior

Answer 6

Top

Pineal glabd

Question 7

what is the pineal gland above

Answer 7

2 pairs of bumps
Superior colliculus
Inferior colliculus

Question 8

what does the Cerebral peduncles contain

Answer 8

– descending tracts

Corticospinal and corticobulbar

Question 9

what cranial nerves emerge at the midbrain

Answer 9

Cranial nerves III and IV

Question 10

what cranial nerves emerge from pons

Answer 10

V, VI, VII & VIII

Question 11

which cranial nerves emerge from the medulla

Answer 11

nerves IX, X & XII

Question 12

the medulla can be divided into what 2 states

Answer 12

Posterior surface divided into open and closed