Brainstem Anatomy Flashcards Preview

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Flashcards in Brainstem Anatomy Deck (26):
1

what horn of the spinal cord carries information away from the CNS (efferent/motor)

Anterior horn or Ventral horn

2

what horn of the spinal cord carries information towards the CNS (afferent/sensory)

Posterior horn or Dorsal horn

3

what artery is a branch of the MCA and is clinically significant in strokes , it supplies deep structures of brain

Anterior choroidal artery

4

3 main functions of the brainstem

conduit of info., cranial nerves, complex integrative functions

5

3 main subdivisions of the brainstem rostral to caudal

midbrain, pons, medulla

6

what is the difference b/w the open and closed medulla

open medulla has little part of 4th ventricle behind it, closed medulla has cerebellum behind it

7

what is considered the open medulla, the rostral or caudal medulla

rostral medulla

8

what plane of the brainstem is the superior calliculi

rostral midbrain

9

what plane of the brainstem does the inferior calliculi sit

caudal midbrain

10

the middle cerebral peduncle is in what part of the brainstem

pons

11

what part of the brainstem houses the olive and pyramid

rostral medulla

12

brainstem tissue anterior to the ventricle cavity

tegmentum

13

brainstem tissue posterior to the ventrical cavity, also referred to as the "roof"

tectum

14

what is the main fiber tract on the anterior brain

corticospinal tract

15

what is the main fiber tract in the anterolateral brain

spinothalamic tract

16

what it the main fiber tract exhibiting vertical configuration in the medial brian

medial lemniscus

17

what part of brainstem shows the pyramidal decussation

caudal medulla

18

which part of the pons (rostral or caudal) would show the a smaller 4th ventricle ? Why ?

rostral because its approaching the cerebral aqueduct

19

what is the substantia nigra and where can it be found

area of gray matter just inside the cerebral peduncle found in rostral midbrain

20

what 3 major arteries supply the lateral brainstem

SCA, AICA (off basilar a) and PICA (off vertebral a.)

21

the occulomotor nucleus and red nucleus can both be found where ?

rostral midbrain

22

what are the 6 types of nerve fibers in the brainstem

visceral sensory, somatic sensory, special sensory, visceral motor, somatic motor, branchial motor

23

where are the motor nuclei axons arranged on the brainstem ? what about sensory axons

motor is medial, sensory stays lateral

24

what sense is involved with special sensory cranial nerves

hearing and equillibrium (CN I, II, VIII)

25

what are the branchiomeric cranial nerves

V, VII, IX, X, XI

26

what are the somatic motor cranial nerves

III, IV, VI, XII