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Nervous System > Lecture 7 > Flashcards

Lecture 7 Flashcards

1
Q

What are the Sucli

A

Valleys in brain

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2
Q

Gyri

A

Hills in brain

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3
Q

What are the for lobes of the cerebral cortex

A

Frontal Lobe - front section of brain
parietal lobe - top
Occipital lobe - back
Temporal Lobe - bottom

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4
Q

What does the Central Sulcus separate

A

the frontal and parietal lobes

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5
Q

What does the lateral sulcus separate

A

the temporal lobe from the frontal and parietal lobe

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6
Q

What does the Parieto-occipital sulcus separate

A

the parietal and occipital lobes

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7
Q

What is the function of the Frontal lobe

A

top - motor

bottom - language, personality

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8
Q

What is the function of the Parietal Lobe

A

Somatosensory

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9
Q

What is the function of the Occipital lobe

A

Vision

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10
Q

What is the function of the Temporal Lobe

A

Memory, hearing

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11
Q

What are the main divisions of the brain

A 
Cerebral Cortex (cerebrum)
Corpus Callosum (white matter)
Cerebellum
Diencephalon -thalamus, hypothalamus  
Brain stem
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12
Q

What components make up the brain stem

A

Midbrain, Pons, medulla oblongata

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13
Q

What are the three types of white matter

A

Commissural tracts - Axons cross from side to side (both directions)
Projection tracts - Axons extend between cortex and other CNS areas outside cerebrum
Association tracts - Axons on the same side within the cerebral cortex, communication between brain areas

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14
Q

what is the first motor

A

Pre-central gyrus -primary motor cortex, the specific regions can control regions of the body

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15
Q

what is first somatosensory

A

Post-central gyrus - primary somatosensory cortex

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16
Q

What is the Corticospinal pathway

A

two neurons, upper and lower between brain/effector

17
Q

What is the purpose of the upper neuron in the corticospinal pathway

A

cell body in Pre-central gyrus
Axon from motor cortex - spine opposite side
Make synapse on lower motor neuron

18
Q

What is the purpose of the lower neuron in the corticospinal pathway `

A

Cell body in the ventral horn of spinal cord
Axon out of the spinal cord into the body
makes synapse of skeletal muscle

Nervous System (8 decks)

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