Ch 49 Pt 1 Flashcards by Nikole Arns | Brainscape

Q

Gray Matter

A

Neuron Cell bodies, dendrites, and unmyelinated axons

Outer brain

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Q

White matter

A

Bundles of mylenated axons

Central brain (mostly white matter)

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Q

Soma (Gray)

A

CNS: nucleus
PNS: ganglion

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Q

Axons (White)

A

CNS: tract
PNS: nerve

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Q

Most information travels in which direction

A

Contralateral

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Q

Dorsal reflex

A

Sensory

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Q

Ventral reflex

A

Motor

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Q

Afferent Neurons

A

Sensory

Fast twitch/ involuntary

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Q

Efferent neurons

A

Motor/output

Skeletal muscles

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Q

Parasympathetic division

A

Rest/Digest

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Q

Sympathetic Division

A

Fight or flight

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Q

Human brain

A

100 billion neurons

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Q

Thalamus

A

Relay station for sensory information

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Q

Frontal lobe

A

Decision making, planning

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Q

Temporal lobe

A

Auditory cortex

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Q

Occipital lobe

A

Visual association

Q

Parietal Lobe

A

Sensory association