1. Nervous System Flashcards

1
Q

4 major lobes of the brain

A

Frontal, Temporal, Parietal, Occipital

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2
Q

Where is the central sulcus

A

Medial region of each hemisphere, separating the precentral and postcentral gyri

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3
Q

Where is the preoccipital notch

A

In crease between the occipital lobe and cerebellum

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4
Q

Responsibility of frontal association cortex

A

Intelligence, Mood, Behaviour, Personality, Cognitive function

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5
Q

Responsibility of temporal association cortex

A

Memory, Aggression, Mood, Intelligence

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6
Q

Responsibility of parietal association cortex

A

Spatial skills, 3D recognition (shapes, faces, abstract perception, concepts)

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7
Q

Responsibilities of the right hemisphere (typicallY)

A

Non-verbal communication, emotional expression, spatial skills, conceptual understanding, artistic/musical skills

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8
Q

Aphasia

A

caused by injury to language areas of the cerebral cortex. an inability to use of comprehend words

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9
Q

Non-fluent (Brocas) asphasia

A

Know what you want to say but do not have the ability to say it. Not able to coordinate movement of laryx, pharynx, mouth to produce cohernt speech

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10
Q

Fluent (Wernickes) asphasia

A

Faulty understanding spoken or written words. Do not understand tasks.

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11
Q

Where is the Brocas area located and what is its function

A

In the motor planning area. Coordinated movement of the larynx, pharynx and mouth to produce fluent, smooth, cohernt speech

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12
Q

Where is the Exners area located and what is its function

A

In the motor planning area above the Brocas area. Controls both reading and writing skill ability

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13
Q

Where is the Wernickes area located and what is its function

A

In the superior of the temporal lobe, surrounds the primary auditory cortex. Understanding and interpretation of tones (tonotopic organisation)

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14
Q

Where is the primary visual cortex located and what is its function

A

The occiptial lobe - the calcarine sulcus runs in the middle of it. See’s shapes and categories them

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15
Q

Where is the secondary visual cortex located and what is its function

A

The occipital lobe and the posterior/inferior area of the temporal lobe. Interpreting shapes and giving them meaning

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16
Q

What is a fasiculus

A

A mass of white matter which connects two regions of the brain/spinal cord so that the areas are able to communicate

17
Q

What is the arcuate fasiculus

A

A bundle of white matter which connects the Brocas to the Wernickes area - allows coordination of the two areas to produce cohernt language.

18
Q

What is the angular and supramarginal gyri

A

Angular - responsible for writing ability
Supramarginal - responsible for reading ability
Both located next to one another in the partial lobe (the supramarginal gyrus is the more anterior area)

19
Q

The lateral fissure seperates which two lobes of the brain

A

Frontal from temporal lobe

20
Q

What is agraphia

A

Caused by damage to the angular gyrus. Difficulty writing, loss of ability to write.

21
Q

What is deafness

A

Caused by damage to the primary auditory cortex, loss of sound and tones

22
Q

What does the cingulate gyrus do

A

Relays information from frontal cortex - associated with emotions

23
Q

What does the corpus callosum do

A

A broad white matter that extends and connects the left and right hemisphere - allows communication

24
Q

Hypothalamus

A

Controls many body activities, mainly regulates homeostasis by sending chemicals to the anterior lobe of the pituitary gland via the infundibulum

25
Q

Which structure carries 50% of the total neurons in the brain

A

Cerebellum

26
Q

Three structures of the brain stem

A

Midbrain, Pons, Medulla oblongata

27
Q

Three protective structures around spinal cord

A

Dura mater, Arachnoid mater, Pia mater

28
Q

What are the spaces around the protetcive structures of the brain

A

Epidural space (outside dura mater), subdural space (between dura and arachnoid mater), subarachnoid space (between arachnoid and pia mater - carries CSF)

29
Q

What is the cerebral cortex

A

Outer layer of the brain, composed mainly of grey mater and plays an important role in consciousness