Brain, Stem, Meninges, SC Flashcards Preview

Part 1 Boards Spinal > Brain, Stem, Meninges, SC > Flashcards

Flashcards in Brain, Stem, Meninges, SC Deck (43):
1

aka pallium, developed from neural plate

cerebral cortex

2

aka isocortex 90% of cortex; six cerebral cortex laminae (mostly synaptic activity)

neocortex

3

10% of cortex

allocortex

4

mostly formed by thalamus; relay for cortex, processes sensory info, sleep consciousness; motor relay

diencephalon

5

responsible postural adjustments, steadying voluntary movements, enkaphalins; striatal lesions - tremors (Parkinsons, huntintons, ballism); includes corpus striatum, amygdaloid nucleus and claustrum

basal ganglia

6

telencephalon nuclei include:

caudate, putamen, globus pallidus and basal ganglia

7

mesencephalon nuclei include

substantia nigra and subthalamic

8

corpus striatum (striate body)

head of the caudate and putamen

9

lentiform nucleus

globus pallidus (medial) and putamen (lateral)

10

brainstem is made up of (3)

MO, pons and midbrain

11

conduit for ascending and descending tracts, contains reflex centers associated with respiration, CV and consciousness; contains important nuclei of CN III-XII

brainstem

12

meninges from inside out (PAD)

pia, arachnoid, dura mater

13

CSF mL

140-270mL (adult)

14

innermost layer of neural tube

ependymal cells

15

produces CSF

choroid plexus

16

space between arachnoid and pia (lumbar puncture or spinal tap)

subarachnoid space

17

resorbs CSF

arachnoid granulations

18

atrophy or damage of the basal ganglia can produce

chorea (quick movements)

19

due to neuronal degeneration of the substantia nigra (lewy bodies)

parkinsonism

20

CSF in ventribles approx ?mL

25mL

21

# pairs of spinal nerves

31

22

dorsal roots (? fibers) ventral roots (? fibers)

sensory/afferent, motor/efferent

23

spinal cord terminates at what level

L1/L2

24

end of the SC

conus medullaris

25

roots for lumbar sacral and coccygeal nerves through lumbar cistern forming "horses tail"

cauda equina

26

tectum (roof) and peduncles

midbrain

27

CSF exchange between 3rd and 4th ventricles

cerebral aqueduct of sylvius

28

tegmentum, substantia nigra, crus cerebri, CN III and IV

cerebral peduncles

29

black color - dopamine from tyrosine, melanin byproduct

substantia nigra

30

part of cerebral peduncle - corticospinal, corticopontine, corticobulbar, corticomesencephalic fibers (eye movement)

crus cerebri

31

function in integration of momentary static muscle contraction, joint tension, visual and auditory input regarding equlibrium

cerebellum

32

medial cerebellum

vermis

33

anterior cerebellum, general muscle tone

paleocerebellar

34

posterior cerebellum, coordination of skilled movements

neocerebellar

35

(flocculonodular), equilibrium

archicerebellar

36

afferent, efferent, commisural and association fibers aka corpus medullare

white matter

37

cerebellum blood supply

branches of vertebral and basilar arteries

38

gray matter neuron cell types

purkinje, golgi II, stellate, basket, granular

39

cerebellar nuclei from medial to lateral, small to large [fat, girls, eat, donuts]

fastigial, globus, emboliform, dentate

40

lateral vestibular

deiters nuclei

41

forebrain has ACh

meynerts nuclei

42

MO, serotonin

raphe nuclei

43

part of corpus striatum

lenticular nuclei