4.11 Brainstem Class Notes 2 Flashcards Preview

7303 Neuroanatomy > 4.11 Brainstem Class Notes 2 > Flashcards

Flashcards in 4.11 Brainstem Class Notes 2 Deck (13):
1

What is in the inferior medulla?

- central canal
- pyramids
- STT
- DCML synapse (Gracile and cuneate nuclei)
- vestibular nuclei
- spinal accessory nucleus
- oculomotor nuclei
- medial longitudinal fasciculus

2

What is in the upper medulla?

- fourth ventricle
- pyramids
- STT
- CN nuclei 7-12 (dorsal)
- ION

3

Structures in the anterior pons

descending tracts

4

Structures in the posterior pons (aka tegmentum)

ascending tracts
- sensory
- some autonomic
- MLF

cortex » pons » contralateral cerebellum (via ION)

5

What is in the basis pedunculi of the midbrain?

- cerebral peduncles
- SN

6

What is in the midbrain tegmentum?

- red nucleus
- PPN
- cerebral aqueduct

7

What does the red nucleus receive info from?

contralateral cerebellum

8

Where does the red nucleus project?

- cerebellum
- rubrospinal tract
- RF

9

cerebral aqueduct is surrounded by

periaqueductal gray

10

function of periaqueductal gray

- pain suppression
- rxns to pain
- rxns to threats and emotion

**where fight or flight originates

11

pretectal area responsible for

3 eye reflexes

12

What projects to the inferior colliculi?

cochlear division of CN 8

for auditory relay

13

What is the tectum responsible for?

reflexive head movements