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BIOL 2410 > Lecture 12 & 13: Organization of CNS > Flashcards

Lecture 12 & 13: Organization of CNS Flashcards

(52 cards)

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1
Q

Where and when does the brain develop from

A

3rd week - Hollow tube

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2
Q

When does the fore, mid, and hind brain develop

A

4th week

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3
Q

Describe the difference of Grey and white matter

A

Grey matter = Outside the brain, unmyelinated

White matter = Inside brain, myelinated

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4
Q

Why is white matter white?

A

Due to the myelin shealth

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5
Q

Describe the Early , Late and Derivatives of the forebrain

A

Cerebrum = cerebral hemispheres, basal ganglia, lateral and 3rd ventricle

Diencephalon = thalamus and hypothalamus

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6
Q

Describe the Early, Late and derivatives for the Midbrain

A

midbrain = midbrain then superior, inferior colliculi, substantia nigra

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7
Q

Describe the Early, Late and derivatives for the hindbrain

A

Pons/Cerebellum = Pons and cerebellum

Medulla =Medulla

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8
Q

Tracts are located in the ___ where as Nevers are located in the ___

A

CNS ; PNS

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9
Q

What is the meninges and what is included in it

A

Protecting layer of the CNS
Duro matter
Arachnoid Membrane
Pia matter

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10
Q

Define Meningitis

A

when the meninges swells and causes pressure on the brain

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11
Q

What are the three types of brain bleeding

A

1) Epidural = between Skill and dura
2) Subdural = Between dura and arachnoid
3) Subarachnoid = Between arachnoid and Pia matter

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12
Q

Where is CSF made

A

Choroid plexus

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13
Q

What are the three functions of the CSF

A

1) Solute concentration
2) Waste removal
3) Coushin for brain

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14
Q

Describe the destinations of the ascending and descending tracts

A 
Ascending = brain
Descending = motor
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15
Q

How many total spinal nerves

A

31

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16
Q

What are the four areas of the spinal chord

A

Cervical
Thoracic
Lumbar
Sacral

(Carl Thinks Lamb Sucks)

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17
Q

Medula oblongata controls what

A

Heartbeat, blood vessels, respiration and digestion

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18
Q

Pons is a _____ station for ___ and ___

A

Relay; Cerebrum and cerebellum

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19
Q

Each half of the brain has how many lobes

A

5

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20
Q

Midbrain is the ____ relay

A

Visual and auditory info

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21
Q

Midbrain does what movement

22
Q

Cerebellum does what

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A

processes sensory information
Cognition
Stores memories

23
Q

Thalamus is the

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A

main relay centre

24
Q

Hypothalamus does what

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A

regulates internal environment

25
What are the 4 structures within the cerebrum
Cortex (outer) White matter Basal ganglia Limbic system
26
Grey matter + white Matter =
cerebrum
27
Occipital lobe = what sense
Vision
28
Temporal lobe = what sense
hearing
29
Parietal lobe = what sense
Sensory
30
Frontal lobe = what
Motor
31
Insular =
Inside sulcus
32
If someone cant understand or formulate language what is probably damaged
Wernicke's and Brocas area
33
what does the limbic system contain
hippocampus, amygdala, thalamus
34
Basal Ganglia is a collection of what
nuclei
35
Basal Ganglia forms what
a complex circuit between the motor cortex, pre motor cortex, cerebellum
36
Where does CSF escape the brain
Magendie (median) Luschka (lateral)
37
Where is the blood brain barrier
Between interstitial fluid and blood
38
What are the 4 main support/protective systems for the CNS
1) Skull/vertebral column 2) Meninges 3) CSF and ventricles 4) Blood Brain Barrier
39
What glial cells make the Blood Brain Barrier
Astrocytes
40
Only what type of molecules can cross the BBB
Lipophilic
41
About ____% of corticospinal tracts cross the midline
90%
42
What is the diencephalon made up of
thalamus and hypothalamus | Pituitary and pineal glands
43
Dorsal roots carry what
sensory information
44
Ventral roots carry what
motor information to muscles
45
What are the 4 important nuclei in the spinal cord
Visceral Somatic sensory Autonomic efferent Somatic control
46
What is a newly discovered function of the cerebellum
Cognition
47
What is the most distinct part of the brain
Cerebrum
48
The cortex has three specializations which are
sensory motor association
49
Language processing, math processing occur on what side for most people
left
50
Parkinson's disease is due to what
loss of dopaminergic neurons in basal ganglia
51
Huntington's disease is due to
loss of cholinergic neurons in basal ganglia
52
What is the primary function of the corpus callosum
integrate motor, sensory and cognitive performances

BIOL 2410 (11 decks)

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