Brain Flashcards

1
Q

Largest region of the brain

A

Cerebrum

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2
Q

Region between cerebrum and the midbrain

A

Diencephalon

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3
Q

Region containing most neurons

A

Cerebellum

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4
Q

Region containing midbrain, pons and medulla oblongata

A

Brainstem

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5
Q

Ridges and grooves of the Brian

A

Gyri (ridges of brain) and sulci (grooves of brain)

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6
Q

Deep groove that divides the cerebrum into left and right hemispheres

A

Longitudinal fissures

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7
Q

Bundle of nerves that connects left and right hemispheres

A

Corpus callosum

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8
Q

Innermost layer that contains blood vessels (Meningeal Layers)

A

Pia Mater

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9
Q

Middle layer - very thin (Meningeal Layers)

A

Arachnoid layer

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10
Q

Tough, outer layer (Meningeal Layers)

A

Dura Mater

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11
Q

Between pia mater and arachnoid mater, contains cerebrospinal fluid (Meningeal Layers)

A

Subarachnoid space

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12
Q

Bundle of nerve roots that protrude from the end of the spinal cord

A

Cauda equina

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13
Q

Contains no Myelin, contains motor neurons and interneurons (Grey and white matter)

A

Grey Matter

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14
Q

Contains Myelin and bundles of axons that carry impulses away from one part of the nerve (Grey and white matter)

A

White matter

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15
Q

Contains blood vessels, connective tissue and fat (Grey and white matter)

A

Epidural Space

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16
Q

Surface of the brain, covers cerebrum and cerebellum, in patches in the white matter (Grey and white matter)

A

Grey matter

17
Q

Found underneath the cerebral cortex (Grey and white matter)

A

White matter

18
Q

Attached to the inside of the skull (layers of the dura mater)

A

Periosteal layers

19
Q

Covers the brain, continues as dura mater of spinal cord (layers of the dura mater)

A

Meningeal layer

20
Q

Space in the dura mater that collects blood that has passed through the brain and need to be returned to the heart (layers of the dura mater)

A

Dural Sinuses

21
Q

Separates dura mater from arachnoid mater (layers of the dura mater)

A

Subdural space

22
Q

Separates arachnoid mater from pia Mater (layers of the dura mater)

A

Subarachnoid space

23
Q

Role of the midbrain

A

Contains tracts that relay sensory and motor impulses, contains centres for auditory and visual reflexes, contains clusters of neurons integral to muscle control

24
Q

Role of the pons

A

Contains tracts that convey signals to and from different parts of the brain

25
Q

Main centres of medulla oblongata

A

Cardiac centre, Vasomotor centre, two respiratory centres

26
Q

Thalamus role

A

Processes sensory inputs and decides which ones to transmit to the cerebral cortex, involved in memory and emotion

27
Q

Hypothalamus role

A

Controls autonomic nervous system, contains centres for hunger, thirst and temperature regulation, controls pituitary gland