Spinal Cord Flashcards Preview

Anatomy of Nervous System > Spinal Cord > Flashcards

Flashcards in Spinal Cord Deck (16)
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1
Q

In a laminectomy, what parts of the vertebrae have been removed to open up the spinal canal?

A

Spinous process and lamina

2
Q

What muscles overlies the spinous process and lamina?

A

Erector spinal

3
Q

What ligaments might be encountered in a laminectomy?

A

Intervertebral flavour and supraspinous ligaments

4
Q

What other structures apart from the spinal cord and the meninges lie in the spinal canal?

A

Blood vessels

5
Q

At vertebral levels the spinal cord end in an adult?

A

L1/2

6
Q

At vertebral levels the spinal cord end in a child?

A

L2/3

7
Q

At what vertebral level does the dura mater terminate?

A

L2

8
Q

At what vertebral level does the arachnoid terminate?

A

S2

9
Q

What happens to the Pia mater inferior to the spinal cord?

A

Continues are filum terminale

10
Q

What occupies the space between the end of the spinal cord and the termination of the dura and arachnoid and what is the clinical significance of this?

A

CSF - space where spinal cord ends, proving space for lumbar punctures without damaging spinal cord

11
Q

At what vertebral level would you perform a lumbar puncture on an adult and how would you position them?

A

L3/4 and in the foetal position to separate spinous processes

12
Q

How many pairs of spinal nerves are there?

A

31

13
Q

Describe the damage to a spinal nerve

A

Depends where is occurs:
Upper motor neurone - from primary motor cortex (area 4) to ventral horn
Lower motor neurone - from ventral horn to periphery

14
Q

How are UMN lesions characterised?

A

Spasticity, and increase in muscle tone and complex sensory syndromes

15
Q

How are LMN lesions characterised?

A

Global sensory changes and or flaccid paralysis depending on nature of the mixed peripheral nerves

16
Q

Is damage to the caudate equine classified as an upper or lower motor neurone lesion?

A

Lower motor neurone