Lecture 20 Pathology of CNS 1 Flashcards Preview

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Flashcards in Lecture 20 Pathology of CNS 1 Deck (34):
1

Autonomic nervous system?

Automatic, involuntary

2

Somatic nervous system?

Skeletal muscles, voluntary

3

What are the meninges role?

protective function and inportant in cerebrospinal fluid production

4

Meninges from outside to inside?

Dura, acachnoid and pia mater

5

What do the cerebral arteries supply?

A defined territory within the cerebral cortex

6

What can an increased intracranial pressure lead to?

Herniation (part of brain moves from one compartment of skull to another)

7

Where is the vomiting centre?

Medulla oblongata

8

What are the parts of the spinal cord top to bottom

Cervical (8), thoracic (12), lumbar (5), sacrum (5) and 1 coccygeal

9

What is the function of glial cells?

support neurons.

10

What are schwann cells and two types?

Forms mylin sheath. Astrocyte and oligodendrocytes

11

What does the pre-central gyrus involve?

motor cortex

12

What does the post-central gyrus involve?

sensory contrex

13

Where is the broca's area and what does it do?

Frontal lob. Speech procduction

14

Where is the Wernicke's area and what does it do?

Temporal lobe. Speech processing and comprehension

15

Damage to spinal cord at a specific levelwill cause?

A loss of function of spinal nerves below that level

16

What are focal neurological signs?

Set of symptoms or signs where cause is localised to specific site in CNS

17

What is a generalised neurological abnormality?

An alteration in level of consciousness

18

If anosmia what part of brain injured?

Frontal lobe

19

If inappropriate emotions which part of brain is injured?

Frontal lobe

20

If expressive dysphasia which part of brain is injured?

Frontal lobe (broca's area)

21

If motor impairment which part of brain is injured?

Frontal lobe

22

If receptive dysphasia which part of brain is injured?

Parietal or temporal lobe

23

If sensory impairment which part of brain is injured?

Parietal lobe

24

If cortical deafness which part of brain is injured?

Temporal lobe

25

What does frontal lobe control?

Emotional reactions, mortor cotex, generation of fluent speech (Broca's area)

26

What does the parietal lobe control?

Sensory info (has sensory cortex)

27

What does the temporal lobe control?

Language, has auditory cortex, comprehension

28

What is receptive dysphasia?

Difficulty in comprehension

29

What is dysphasia?

Difficulting in putting words together

30

Signs limited to a single dermatome or nerve root suggests?

Either a focal nerve root injury or injury to a peripheral nerve

31

Complete paralysis of body and legs with maintained head and neck movement is caused by?

injury to cervical spine

32

What dose a diffused neurological injury manifest as and what is it due to?

Impaired consciousness and due to intracranical pressure.

33

What can cause a reduce in consciousness?

Trauma (obvious). Hypoxia, hypothermia (identified through basic obs). Hypo/hyperglycaemia, post epilepitic (require clinical history).

34

What is the best GCS most response, verbal response, eye opening?

Obeys commands, orientated to time/place/person. Spontaneous eye opening