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Bio 12 > Nervous System > Flashcards

Nervous System Flashcards

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Biology 101 flashcards
1
Q

Where does action potential go into

A

Dendrites

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2
Q

Where does action potential leave

A

Axon

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3
Q

Reflexes

A

Neurons travel through spinal cord, sensory neuron to mother neuron. Brain after

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4
Q

Resting potential

A

More sodium outside ask on the inside. More potassium inside than outside

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5
Q

Depolarization

A

Sodium channels opens and sodium moves into the axon

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6
Q

Between depot

A

Repolarizationwhen most sodium/potassium are in axoplasam

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7
Q

Repolarization

A

Potassium channels open, potassium diffuses to the outside of the axon

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8
Q

Refractory period

A

Sodium and potassium reset

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9
Q

What lobe does vision happen in

A

Occipital

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10
Q

Where does conscious thought happened

A

Frontal lobe

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11
Q

What is saltatory transmission

A

Allow more rapid nerve conduction along axon

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12
Q

What is the pump made out of

A

Protein and needs ATP

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13
Q

GABA

A

Inhibitory

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14
Q

Dopamine

A

Exocititory

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15
Q

Norepinephrine

A

Exocititory

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16
Q

Endorphine

A

Exocititory

17
Q

Serotonin

A

Inhibitory

18
Q

Five actions of drugs at synapse

A

Simulates release of neurotransmitter. Block/inhibits release of Nero transmitter. Combine with new transmitter preventing it’s breakdown. Mimes neurotransmitter. Blocks receptors so Neurotransmitters can’t be received

19
Q

Function of spinal cord

A

Conducts messages to and from brain

20
Q

Dorsal root

A

In

21
Q

Ventral root

A

Out

22
Q

Sympathetic nervous system

A

Exocititory

23
Q

Largest part of the brain

A

Cerebrum

24
Q

Protective set of membranes around the brain and spinal chord

A

Meninges

25
Q

Where are interneurons found

A

Only in CNS

26
Q

What breaks down neurotransmitters in the synaptic cleft after their release

A

Enzymes

27
Q

Excitatory neurotransmitter

A

Make post synaptic membrane more permeable to sodium

28
Q

Inhibitory transmitters

A

Make post synaptic membrane less permeable to sodium

29
Q

Which lobe is responsible for hearing

A

Parietal lobe

30
Q

Why can nerve impulses only go in one direction

A

One side has neurotransmitters and the other has receptors

Bio 12 (9 decks)

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