Central Nervous System Flashcards

1
Q

What makes up the CNS

A

Brain and the Spinal Cord

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2
Q

What meninges cover the CNS

A

Dura mater
Arachnoid
Pia mater

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3
Q

What are the segments of the spinal cord

A
Cervical
Thoracic
Lumbar
Sacral
Coccygeal
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4
Q

How many pairs of spinal nerves are there

A

31

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5
Q

How many pairs of cervical nerves are there

A

8

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6
Q

How many pairs of thoracic nerves are there

A

12

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7
Q

How many pairs of lumbar nerves are there

A

5

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8
Q

How many pairs of sacral nerves are there

A

5

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9
Q

How many pairs of coccygeal nerves are there

A

1

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10
Q

What does grey matter contain

A

Neurone cell bodies and some axons

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11
Q

What does white matter contain

A

Nerve axons

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12
Q

What is dorsal horn grey matter

A

Location of first order afferent neuron terminals
Found in dorsal or posterior part of spinal cord
Contains cell bodies of second order sensory neurons

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13
Q

What is ventral horn grey matter

A

Contains cell bodies of motor neurons

Found in ventral or anterior part of spinal cord

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14
Q

What does white matter stain myelin

A

Dark

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15
Q

What does grey matter stain myelin

A

Pale

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16
Q

What regions of the spinal cord contain more white matter than grey matter

A

Cervical and thoracic regions

17
Q

What regions of the spinal cord contains more grey matter than white matter

A

Lumbar and sacral regions

18
Q

Where is the grey and white matter located in the spinal cord

A

White matter surrounds the grey matter

19
Q

Where is the white and grey matter located in the brain

A

White matter inside the core with grey matter on the surface

20
Q

Which parts of the brain are located in the forebrain

A

The cerebral cortex and the diencephalon

21
Q

Which parts of the brain are located in the hindbrain

A

Pons
Medulla oblongata
Cerebellum

22
Q

What is the function of the midbrain

A

Visual and auditory reflexes

Pain control

23
Q

What is the function of the hindbrain

A

Vital centres regulating breathing, heart, blood vessel - medulla
Control of balance and posture - cerebellum

24
Q

Which parts of the brain are located in the diencephalon

A

Thalamus
Hypothalamus
Cerebrum

25
Q

What is the function of the thalamus

A

Sensory processing

26
Q

What is the function of the hypothalamus

A
Role in homeostasis eg - thermoregulation
Hormone production
Associated with the pituitary gland
Circadian rhythms
Motivation
Emotional responses eg - stress
27
Q

What is the function of the cerebral cortex

A
Sensory and motor functions
Language
Memory
Perceptions
Sensory-motor integrations
Emotions
28
Q

What makes up the lateral surface of the brain

A

Frontal lobe
Parietal lobe
Occipital lobe
Temporal lobe