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Flashcards in Spinal Cord Deck (22):
0

What areas of spinal cord have large VENTRAL horns?

Cervical and lumbar enlargements (C3-T1, L1-S3)
As large motor output to limbs (cervical - hands, lumbar- feet)

1

What region of SC has a significant lateral horn?

Thoracic

2

What type of neurones are found in the lateral horn?

Preganglionic (sympathetic)

3

How many spinal nerves (pairs) are there?

31

4

The spinal cord extends from the____ to the ____?

Foramen magnum

to the

1st/2nd lumbar vertebrae

5

Lamina I of the dorsal horn is the?

Nucleus posteromarginalis (posterior marginalis)

6

Lamina II of the dorsal horn is?

And has a key role in ?

Substantia gelatinosa

Pain

7

Laminae III, IV and V of dorsal horn are the?

Nucleus proprius

8

Lamina 7 of the intermediate horn is the?

Intermediolateral nucleus

Contains interneurones

9

Lamina IX of the ventral horn is the ?

Motor nucleus

(Moor neurones for trunk and neck located medically, for limbs locate laterally)

10

Laminae 1-6 of SC are involved in?

Sensory function/processing

11

Which laminae surround a central canal?

Lamina X

12

What's the outer layer of the meninges?

Dura

13

Which layer of meninges adheres to spinal cord?

IPA

14

Sympathetic preganglionic neurones (visceral motor output) are in the lateral horns of which spinal regions?

Thoracic an lumbar

15

Parasympathetic preganglionic neurones (visceral motor output) lie in the lateral horns of which spinal segments?

And what other brain region?

Sacral

Brainstem (medulla) - cranial nerves

16

Sympathetic ganglia are close to?

CNS

17

White matter of SC dives into which 3 regions?

Posterior, lateral and anterior funiculus

18

Posterior funiculus is also known as ______ and contains which ascending tracts?

Dorsal columns

Gracile and cuneate fasciculi

(G - lower body, C - upper body)

19

The anterolateral regions of SC contain which tract?

Spinothalamic

(Pain and temperature)

20

Syringomyelia is due to?

And results in?

Expansion of spinal canal

Bilateral loss of temperature and pain sensation

21

Brown-sequard results in contralateral loss of _____ and ipsilatetal loss of ______?

Pain and temp

Touch, vibration, proprioception