Unit 3 A Flashcards

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1
Q

Bio psych

A

Branch of psychology concerned w/ links b/w biology and behavior

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2
Q

Neuron

A

Nerve cell basic building block

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3
Q

Sensory neuron

A

Incoming info; brain to spinal cord

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4
Q

Motor neuron

A

Outgoing info; spinal cord to muscles and glands

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5
Q

Inter neuron

A

Neuron within brain

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6
Q

Dendrite

A

Branch of neuron; receives info

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7
Q

Axon

A

Cord of neuron ending in terminal fibers that passes messages to other neurons

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8
Q

Myelin sheath

A

Covers axon of some neurons and helps speed neural impulses

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9
Q

Action potential (neural impulse)

A

Electrical signal traveling down axon

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10
Q

Threshold

A

Level of stimulation required to trigger an impulse

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11
Q

Synapse

A

Tiny gap between tip o sending neuron and dendrite of receiving neuron

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12
Q

Reuptake

A

Neurotransmitter reabsorption by sending neuron

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13
Q

Endorphins

A

Opiatelike NT linked to pain control and to pleasure

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14
Q

Central nervous system CNS

A

Brain and spinal cord

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15
Q

Peripheral nervous system PNS

A

Sensory and motor neurons that connect to CNS

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16
Q

Nerves

A

Axons that connect like cables around the body

17
Q

Somatic nervous system

A

Skeletal nervous system

18
Q

Automatic nervous system

A

Controls muscles if internal organs like the heart

19
Q

Sympathetic nervous system

A

Arouses body mobilizing its energy in stressful situations

20
Q

Parasympathetic nervous system

A

Calms body conserving its energy

21
Q

Reflex

A

Automatic response

22
Q

Endocrine System

A

Body’s ‘slow’ chemical communication system

23
Q

Hormones

A

Manufactured by endocrine

24
Q

Adrenal glands

A

Endocrine glands above kidneys and secret hormones tht help arouse body in times of stress

25
Q

Pituitary glands

A

Endocrine a most influential gland regulates growth