Vocab (09/26/13) Flashcards

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0
Q

MRI (Magnetic Resonance Imaging)

A

Uses magnetic fields and radio waves to produce images

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1
Q

Motor neurons

A

Neurons that carry info from CNS to muscle glands

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2
Q

Myelin sheath

A

Layer of fatty tissue encasing the fibers

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3
Q

Nerves

A

Neural cables containing many axons

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4
Q

Nervous system

A

The body’s speedy, electrochemical communication network

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5
Q

Neural networks

A

Interconnected neural cells

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6
Q

Neuron

A

A nerve cell

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7
Q

Neurotransmitters

A

Messengers that transverse the synaptic gaps

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8
Q

Occipital lobes

A

receives visual info

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9
Q

Parasympathetic nervous system

A

Autonomic nervous system that calms the body

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10
Q

Parietal lobes

A

Receives sensory input for touch and body position

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11
Q

Peripheral nervous system

A

connect the CNS to the rest of the body

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12
Q

PET (Positron Emission Tomography)

A

Detects where a radioactive form of glucose goes

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13
Q

Pituitary gland

A

The endocrine system’s most influential gland

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14
Q

Plasticity

A

Brains capacity for modification

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15
Q

Reflex

A

Inborn response to a sensory stimulus

16
Q

Reticular formation

A

Nerve network in the brainstem that controls arousal

17
Q

Sensory cortex

A

registers/processes body touch & movement sensations

18
Q

Sensory neurons

A

Carry info from sense receptors to the CNS

19
Q

Somatic Nervous system

A

Controls the body’s skeletal muscles

20
Q

Split brain

A

2 hemispheres of brain are isolated by cutting

21
Q

Sympathetic nervous system

A

Arouses the body, mobilizing energy in stressful situations

22
Q

Synapse

A

Junction between axon tip and dendrite

23
Q

Temporal lobes

A

receives auditory info

24
Q

Thalamus

A

Brains sensory switchboard

25
Q

Threshold

A

Stimulation to trigger a neural impulse

26
Q

Wernicke’s area

A

Controls language reception

27
Q

Environment

A

Every nongenetic influence

28
Q

Behavior genetics

A

Study of relative power & limits on behavior

29
Q

Chromosomes

A

Made of DNA & contain genes