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BRS > Central Nervous System > Flashcards

Central Nervous System Flashcards

1
Q

What is the PNS made up of?

A

Cranial and spinal nerves

Ganglia outside the brain and spinal cord

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2
Q

What is in the forebrain?

A

Cerebrum

Diencephalon

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3
Q

What is in the hindbrain?

A

Pons
Medulla
Cerebellum

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4
Q

What is the frontal lobe responsible for?

A

Regulating and initiating motor function, language, cognitive functions (executive function [e.g. planning], attention, memory)

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5
Q

What is the Parietal lobe responsible for?

A

Sensation (touch, pain), sensory aspects of language, spatial orientation and self- perception

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6
Q

What is the temporal lobe responsible for?

A

Processing auditory information

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7
Q

What is the occipital lobe responsible for?

A

Processing visual information

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8
Q

What makes up the limbic lobe?

A

Amygdala
Hippocampus
Mamillary body
Cingulate gyrus

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9
Q

What is the limbic lobe responsible for?

A

Learning, memory, emotion, motivation and reward

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10
Q

Where is the insular cortex?

A

Deep within the lateral fissure

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11
Q

What is the insular cortex responsible for?

A 
Visceral sensations
Autonomic control
Interoception
Auditory processing
Visual- vestibular integration
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12
Q

Where does cerebrospinal fluid flow?

A

Ventricular system

Sub-arachnoid space

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13
Q

Where is cerebrospinal fluid produced?

A

Choroid plexus of lateral 3rd and 4th ventricles

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14
Q

Which of the meninges is a loose covering over the cerebrum?*

A

Dura and Arachnoid

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15
Q

Where is cerebrospinal fluid reabsorbed?

A

Arachnoid villi

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16
Q

Compare cerebrospinal fluid with blood plasma.

A

CSF - lower pH, less glucose, less protein, less potassium

17
Q

Why is CSF a good indicator of disease?

A

Any changes in the composition may have a pathological cause

18
Q

Where do afferent/sensory nerves join the spinal cord?

A

Dorsal root

19
Q

Where do efferent/motor nerves join the spinal cord?

A

Ventral root

20
Q

Why is there a swelling in the dorsal root after the mixed spinal nerve?

A

Dorsal root ganglion. There are cell bodies.

21
Q

How do spinal nerves emerge from the vertebral column?

A

Through intervertebral foramina
C1 - C7 emerge above vertebrae
C8 - Co1 emerge below vertebrae

22
Q

What are the sections of the spinal cord?

A 
Cervical
Thoracic
Lumbar
Sacral
Coccygeal
23
Q

What is the pathway for voluntary movement?

A

Corticospinal tract. It is descending

24
Q

What are the pathways for sensation?

A

Dorsal column pathway Spinothalamic tract

They are ascending

25
Q

What is the dorsal column pathway responsible for?

A

Fine touch, vibration, and proprioception

26
Q

What is the spinothalamic pathway responsible for?

A

Pain, temperature

27
Q

What percent of fibres coming from one hemisphere of the brain decussate and innervate the opposite side of the body?

A

85%

28
Q

What does decussate mean?

A

Cross or intersect

BRS (6 decks)

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