1.3 Flashcards

(39 cards)

1
Q

Neural Cells

A

Basic building of the nervous stem, responsible for transmitting signals throughout the body.

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2
Q

Neurons

A

Responsible for many of body’s actions

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3
Q

Gial Cells

A

Cells that support nerve cells, or neurons, in the nervous system

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4
Q

The Reflex Arc

A

Function in order to maintain a balanced and stable position

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5
Q

Sensory Neurons

A

Nerve cells that receive sensory input from the environment and transmit that information to the brain

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6
Q

Motor Neurons

A

Specialized brain cells that transmit impulses from the brain and spinal cord to muscles,glands,and organs throughout the body

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7
Q

Interneurons

A

Connects sensory and motor neurons in the brain and spinal cord

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8
Q

Mirror Neurons

A

Provide a mechanism for action understanding, imitation learning, and stimulation of other peoples behavior

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9
Q

Neural Transmission

A

Transmission of nerve impulses across synapse

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10
Q

All Or Nothing Principle

A

Describes how nerve cells either fire at full strength or do not

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11
Q

Depolarization

A

Membrane potential becomes less negative, facilitating the generation of an action potential

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12
Q

Refractory Period

A

The period immediately after a neuronal firing during which no additional neuronal firings can be completed

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13
Q

Resting Potential

A

When a neuron is resting

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14
Q

Reuptake

A

Pre synaptic neuron reabsorbs its released neurotransmitter after the neurotransmitter has done its job by binding to the postsynaptic neuron

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15
Q

Threshold

A

The lowest point at which a particular stimulus will cause a response in an organism

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16
Q

Multiple Sclerosis

A

Chronic disease of the CNS where immune system attacks sheath and causes communication problems between your brain and body

17
Q

Myasthenia gravis

A

Chronic autoimmune disorder in which antibodies destroy the communication between nerves and muscle, resulting in weakness of the skeletal muscles

18
Q

Neurotransmitter

A

Chemical that allows neurons to communicate with each other throughout the body

19
Q

Excitatory Transmitter

A

Excite neuron that causes neurons to fire off the message.

20
Q

Inhibitory Transmitter

A

Block or prevent the chemical message from being passed along any further

21
Q

Dopamine

A

Type of neurotransmitter and hormone that plays a role in movement, memory, and motivation

22
Q

Serotonin

A

Neurotransmitter with an integral role in the body like behavior, mood, memory, and gastrointestinal homeostasis

23
Q

Norepinephrine

A

Neurotransmitter of the brain that plays as essential role in the regulation of arousal, attention, cognitive function, and stress resctions

24
Q

Glutamate

A

Neurotransmitter important to memory cognition and mood regulation

25
GABA
neurotransmitter, chemical messenger to your brain, blocks specific signals in CNS to slow down brain (produces a calming affect)
26
Endorphins
Neurotransmitter released by the pituitary gland and hypothalamus in the brain.
27
Substance P
Neuroleptics involved in inflammation and in signaling noxious stimulation to the brain
28
Acetylcholine
Neurotransmitter that is considered excitatory and carries messages from brain to body
29
Adrenaline
Helps you prepare for stressful or dangerous situations, secreted by adrenaline glands
30
Leptin
Hormone your body releases that helps maintain your nor a, weight on a long term basis
31
Ghrelin
Multifaceted hormone which activates its receptor, growth hormone secretagogue receptor, insulin increase and protects cardiovascular health
32
Melatonin
Hormone in your body that plays a role in sleep
33
OxyContin
Euphoria, a feeling of relaxation are the most common affect of oxycodone on the brain
34
Psychoactive Drugs
Chemical substance that changes brain function and results in alteration in perception, moods consciousness, cognition, or behavior
35
Antagonists
Chemical medication that attaches to the brain receptors and inhibits an agonist from reacting
36
Stimulants
Broad class of drugs that increase the activity of the CNS
37
Depressants
Substances that slow down the CNS resulting in an overall feeling of relaxation
38
Hallucinogens
Group of drugs that alter a persons perception of reality
39
Opioids
Natural semi synthetic or synthetic chemicals that interact with opioid receptors in the body and brain and reduce perception of pain