S4: Anatomy of the Spinal cord Flashcards Preview

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Flashcards in S4: Anatomy of the Spinal cord Deck (48)
1

Name:

the pathways, their sites of origin,  and a general statement of their function. 

lateral corticospinal tract

 

function -- voltunary movement, particular discete digit movements

 

pathology -- same side paralysis of distal muscles below lesion

 

origin -- cortex

termination -- gray matter at all spinal segments

2

name, origin, termination, function?

gracile fasiculus

origin -- epicritc (DML) and proprioceptive (dorsal spinocerebellar) info from lower body

terminate -- gracile nucleus in the medulla

 

X - ipsilateral loss of epicritic below the lesion

3

name, origin, termination, function?

cuneate fasculus

from -- carries epicritic and proprioceptive from upper half of the body

terminates -- cuneate nculeus in the medulla

X - ipsilateral loss of epicritc below the lesion

4

name, origin, function?

hypothalamo-reticulo-spinal tract 

function -- caries pregang. symps to the IML

from -- the hypothalamus and reticular formation

to -- IML

X -- same side horners syndrome 

5

name, origin, termination, function?

Anterolateral tract

function -- carries propathic (simple toucn pressure pain temp) from opposite side of the body

pathology - CONTRLATERAL loss of propathic sensation 

origin - sensory neurons in dorsal horn 

termination - brainstem reticular formation and other parts of midbrian, thalamus (VPL, DM, and intralamianr nuceli)

6

name, origin, function?

ventral / anterior corticospinal tract 

function - voluntary moivement, particularly axial and proximal muscle

origin - cortex

to - itnermediate grea area 

7

name, origin, termination, function?

Lissauer’s tract (dorsolateral tract )

function - transmists small diamter axons (like ALS) carrying pain and temp to dorsal horn

origin - pain and temp neurons

to - dorsal horn

8

identify or name the sites of origin and termination and basic function(s) 

gracile fasciculus

function --- carries epicritic from lower body

pathology -- loss of epicritc info below the lesion on the same side

9

identify or name the sites of origin and termination and basic function

cuneate fascilulus

function -- carries epicritc information from the upper body

X - ispilateral loss of epicritic below the lesion

10

ventral corticospinal tract

function -- voltunary movement

pathology - ispilateral paralysis of proximal muscle below the lesion

11

hypothalamo-reticulo-spinal tract 

function - carries pregang parasymps

from - hypothalamus and reticular formation

to - IML

pathology - same side horners

12

function, origin, termination, pathology

dorsal spinocerebellar tract

function - carries prroprioceptive ifnromation to the cerebellum from the lower half of the body

from: propriosptive sensory neurons via gracile fasciulus and clarks nucleus

temrinate: cerebellum via the inferior cerebellar peduncle

13

rubrospinal tract (not apparent caudal to the cervical enlargement)

 

function -- distal motor control

pathology -- ipsilateral loss of distal motor control elow lesion

from -- red nculeus

to -- lateral protion of grey matter

14

Lissauer’s tract (dorsolateral tract )

carries pain and temp information

15

. ventral (anterior) corticospinal tract

- ipsilateral voluntary muscle control, to more proximal muscles

16

gracile fasciculus

carries epicritc from DML

and proprioceptive from spinocerebellar

for lower part of body

17

cuneate fasciculus

18

rubrospinal tract 

function -- voluntary motor control

origin -- red nucleus

to: lateral portions of gray matter

19

 lateral corticospinal tract

20

ALS

21

 hypothalamo-reticulo-spinal tract

carries pregang parasymps to IML

X - ipsilateral horners syndrome

22

gracile fasciculus

23

ventral (anterior) corticospinal tract

24

lateral corticospinal tract

25

rubrospinal tract

26

anterolateral tract

27

gracile fasciculus

28

Lissauer’s tract 

29

lateral corticospinal tract

30

anterolateral 

31

red

 

what does this carry?

 

what does X to this cause?

 dorsal funiculus

 

epicritic information

 

Loss of discrete somesthetic infromation on same side of the lesion

32

blue

lateral funiculus

33

what do these contain?

anterior ventral funiculus

 

ascending and descending nerve tracts

34

intermediate area

35

where are the lateral motorneurons enlarged?

brachial and lumbosacral enlargements (A and C)

36

lateral motor cell column

37

intermedial cell column (in the throacic levels)

38

What is the approximate segmental arrangement of this slide? Limb or non-limb? 

Upper cervical - neck and back, respiration

39

What is the approximate segmental arrangement of this slide? Limb or non-limb? 

Lower cervical - upper limb, proximal arm is more rostral

40

What is the approximate segmental arrangement of this slide? Limb or non-limb? 

thoracic - lower back and stomach

41

What is the approximate segmental arrangement of this slide? Limb or non-limb? 

lumbosacral - lower back, proximal leg is more rostral

42

What is the approximate segmental arrangement of this slide? Limb or non-limb? 

sacral - pelvis

43

extrapyramidal tracts

44

lateral cortical spinal tract

45

extrapyramidal tract

46

extrapyramidal tract

47

extrapyramidal tract

48

extrapyramidal