Overview and Cerebral Hemispheres Flashcards

1
Q

CNS

A

Brain

Spinal cord

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2
Q

PNS

A
12 CNs
31 pairs of spinal nerves and branches
8C
12T
1L
5S
1C
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3
Q

Somatic Nervous System

A
External environment
Supplies everything other than organs within body cavities
Sensory - skull, bones and joints
Motor - to skeletal muscles
Voluntary
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4
Q

ANS

A

Sensory - to organs
Responds to motor - cardiac, smooth muscle and glands
Internal environment
Involuntary

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5
Q

Derivates of Telencephalon

And associations

A

Cerebral hemisphere inc. corpus striatum

Associated with lat ventricle

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6
Q

Derivates of Diencephalon

And associations

A

Thalamus and hypothalamus and epithalamus

Ass. with 3rd ventricle

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7
Q

Derivates of Mesencephalon

And associations

A

Midbrain

Ass. with aqueduct penetrating midbrain

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8
Q

Derivates of Metencephalon

And associations

A

Pons and cerebellum

Ass. with upper portion of 4th ventricle

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9
Q

Derivates of Myelencephalon

And associations

A

Medulla oblongata

Ass. with lower portion of 4th ventricle

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10
Q

List grey matter structures

A

Thalamus
Caudate nucleus
Putamen
Internal capsule

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11
Q

What is the main white matter fibre tract between the spinal cord and cerebral hemispheres called?

A

Internal capsule

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12
Q

Which fissure runs down the middle of the brain in a coronal view

A

Longitudinal fissure

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13
Q

What is the interthalamic adhesion

A

2 thalmi touch each other in the midline

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14
Q

Frontal lobe

A

Large lobe ant to central sulcus and sup to lat sulcus

Lobe ant to line drawn from central sulcus down corpus callosum

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15
Q

Parietal lobe

A

Post to central sulcus
Sup to lat sulcus
Ant to parieto-occipital sulcus to the preoccipital notch
Post to frontal lobe and ant to parieto-occipital sulcus

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16
Q

Occipital lobe

A

Post to al one from pariteo-occipital sulcus to preoccipital notch
Post to parieto-occipital sulcus

17
Q

Temporal lobe

A

Inf to lateral sulcus
Post by a line from parieto-occipital sulcus and preoccipital notch
Medially from temporal pole to preoocipital notcj
Ant of calcarine sulcus

18
Q

Insular lobe/insula

A
Usually hidden
Circular suclus
Short gyri
Limen insulae
Central sulcus of insula
Long gyri
19
Q

What makes up the lentiform nucleus

A
Putamen (sup)
Globus pallidus (inf)
20
Q

Arcuate fibres (association fibres)

A

Numerous short bundles that connect adjacent gyri

21
Q

Superior Longitudinal Fasciculus (association fibres)

A

Ant-post
Connect frontal lobes with parts of parietal, temporal and occipital lobes
Like motorway

22
Q

Cingulum (association fibres)

A

Longitudinal bundle near midline

Connects temporal lobe, cingulate gyrus and septal area

23
Q

Corpus callosum (commisural fibres)

A

Largest white matter structure (250, 000, 000 axons)
Main connection between left and right hemispheres
Lateral radiates =radiations
Midline =trunk

24
Q

Ant commisure (commisural fibres)

A

Bundles of axons post to rostrum

Additional communication between left and right temporal lobes

25
Internal capsule (projection fibres)
Bundle of axons Connect cortex with brainstem and spinal cord Connection for intermediatry structures (thalamus and cortex) Ant limb, genu, post limb, and retrolentiform part
26
Corona radiata
Sup end of int capsule | Fan out to cortex
27
Somatic sensory neuron
Found in dorsal root ganglion
28
Somatic motor neuron
Found in dorsal horn of SC
29
Cerebellum
Coordinates movement
30
Thalamus
Relay station for sensory info (from periphery to cortex)
31
Brainstem
Cells ass. with CNs
32
Patient HM
Remove hippocampus bilaterally Anterograde amnesia for long term episodic memory Older memories were intact