Chapter 3: Neuroscience And Behavior Flashcards

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1
Q

Threshold

A

-40 mv

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2
Q

Terminal button

A

The ends of the axon that releases charge

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3
Q

Resting potential

A

At rest it’s -70 mv

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4
Q

Myelin sheath

A

Protecting layer covering the axons. Insulates and improves conductivity

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5
Q

Where is sodium present in the neuron?

A

Outside the neuron

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6
Q

Where is Potassium present in the neuron?

A

Inside the axon of the neuron

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7
Q

What happens when you meet the threshold?

A

A channel opens up in the axon, and the sodium flows into the axon, and potassium flows out. The terminal buttons release their chemical into the synapse to communicate to the next neuron

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8
Q

Refractory period

A

Where there can be no firing until it reverts back to state where potassium is on the outside and potassium inside.

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9
Q

Reuptake

A

The chemicals that get released from the terminal buttons, have to go BACK to where they came from (reuptake)

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10
Q

Sensory neurons

A

Neurons 5 senses

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11
Q

Motor neurons

A

Stimulate muscles to produce movement

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12
Q

Inter neurons

A

Connects different neurons together

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13
Q

Conduction

A

Movement of electrical signal within neurons

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14
Q

Transmission

A

Movement of electrical signal from one neuron to another across synapse

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15
Q

Electrochemical action

A

The process of conduction and transmission together

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16
Q

Agonists

A

Drugs increase action of a neurotransmitter

17
Q

Antagonist

A

Drugs that block the function of a neurotransmitter

18
Q

Nervous system

A

Central and Peripheral nervous systems

19
Q

Central nervous system

A

Made up of brain and spinal cord

20
Q

Peripheral nervous system

A

The pathways beyond your brain and spine

21
Q

Divisions of the brain

A

Hindbrain, midbrain, forebrain

22
Q

Hindbrain

A

Coordinates information coming into and out of the spinal cord; also controls the basic functions of life

23
Q

Midbrain

A

Important for orientation and movement

24
Q

Forebrain

A

Highest level of brain; critical for complex cognitive, emotional, sensory, and motor functions

25
Q

Subcortical structures

A

Thalamus and hypothalamus

26
Q

Thalamus

A

Relays and filters information from senses and transmits to cerebral cortex

27
Q

Hypothalamus

A

Regulates body temperature, hunger, thirst, sexual behavior

28
Q

Limbic system

A

Hypothalamus, amygdala, hippocampus

29
Q

Amygdala

A

Takes in environment, and decodes value/risk

30
Q

Limbic system

A

Forebrain that is involved in motivation, emotion, learning, and memory

31
Q

Endocrine system

A

Hormones- pituitary gland. Travel thought blood stream

32
Q

Sympathetic nervous system

A

Sympathetic to keeping you alive (arousing)