Spinal Cord

Question 0

What region of SC has a significant lateral horn?

Answer 0

Thoracic

Question 1

What areas of spinal cord have large VENTRAL horns?

Answer 1

Cervical and lumbar enlargements (C3-T1, L1-S3)

As large motor output to limbs (cervical - hands, lumbar- feet)

Question 2

What type of neurones are found in the lateral horn?

Answer 2

Preganglionic (sympathetic)

Question 3

How many spinal nerves (pairs) are there?

Answer 3

31

Question 4

The spinal cord extends from the____ to the ____?

Answer 4

Foramen magnum

to the

1st/2nd lumbar vertebrae

Question 5

Lamina I of the dorsal horn is the?

Answer 5

Nucleus posteromarginalis (posterior marginalis)

Question 6

Lamina II of the dorsal horn is?

And has a key role in ?

Answer 6

Substantia gelatinosa

Pain

Question 7

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

Answer 7

Nucleus proprius

Question 8

Lamina 7 of the intermediate horn is the?

Answer 8

Intermediolateral nucleus

Contains interneurones

Question 9

Lamina IX of the ventral horn is the ?

Answer 9

Motor nucleus

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

Question 10

Laminae 1-6 of SC are involved in?

Answer 10

Sensory function/processing

Question 11

Which laminae surround a central canal?

Answer 11

Lamina X

Question 12

What’s the outer layer of the meninges?

Answer 12

Dura

Question 13

Which layer of meninges adheres to spinal cord?

Answer 13

IPA

Question 14

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

Answer 14

Thoracic an lumbar

Question 15

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

And what other brain region?

Answer 15

Sacral

Brainstem (medulla) - cranial nerves

Question 16

Sympathetic ganglia are close to?

Answer 16

CNS

Question 17

White matter of SC dives into which 3 regions?

Answer 17

Posterior, lateral and anterior funiculus

Question 18

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

Answer 18

Dorsal columns

Gracile and cuneate fasciculi

(G - lower body, C - upper body)

Question 19

The anterolateral regions of SC contain which tract?

Answer 19

Spinothalamic

Pain and temperature

Question 20

Syringomyelia is due to?

And results in?

Answer 20

Expansion of spinal canal

Bilateral loss of temperature and pain sensation

Question 21

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

Answer 21

Pain and temp

Touch, vibration, proprioception