Nervous systems Flashcards

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1
Q

What is the central nervous system?

A

The brain and spinal cord process and coordinates responses to sensory stimuli

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2
Q

What is the peripheral nervous system?

A

Is everything outside of the central nervous system and contains muscles, organs and glands.

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3
Q

What is sensory stimuli?

A

An event or object that makes a person react to.

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4
Q

What is the spinal cord?

A

a cable of nerve fibers that is connected from the base of the brain to the the lower back enclosed by bone.

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5
Q

what is the autonomic nervous system?

A

A network of neurons that
carry information between
the CNS, and the organs
and glands, to ensure they
are regulated without
conscious awareness

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6
Q

What is the somatic nervous system?

A

A network of nerves that transfer information from the receptor site to the CNS and carries those messages to the muscles to make voluntary movements.

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7
Q

What is the sympathetic nervous system?

A

apart of the autonomic system that prepares our body for action.

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8
Q

What is the parasympathetic nervous system?

A

apart of the autonomic system that bring our body to homeostasis that calms us after action

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9
Q

What is a conscious response?

A

When the person is aware of what they are doing.

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10
Q

What is a unconscious response?

A

When a person is unawake or unaware that they are responding.

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11
Q

What is a neuron?

A

information messengers

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12
Q

What is a sensory neuron?

A

Transmits sensory info from the body to the brain

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13
Q

What is a motor neuron?

A

Transmits motor info from the brain to the body.

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14
Q

What is a interneuron?

A

Transmits info between the sensory and motor neuron

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15
Q

What is a neurotransmitter?

A

A chemical substance released by the terminal button of neuron, for neural transmission

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16
Q

What is excitatory?

A

increases the likelihood that a neuron will fire an action potential.

17
Q

What is inhibitory?

A

Decreases the likelihood that a neuron will fire an action potential.

18
Q

What is glutamate?

A

An excitatory neurotransmitter that helps with learning and memory.

19
Q

What is GABA?

A

An inhibitory neurotransmitter that is commonly associated with calming feelings of anxiety, stress and fear

20
Q

What is a neuromodulator?

A

A chemical messenger that enhances signal transmission.

21
Q

What is dopamine?

A

neuromodulator that is involved with drive and motor movement.

22
Q

What is serotonin?

A

neuromodulator that is involved in stabilizing moods.

23
Q

What is a neuraltransmission?

A

the process of communicating between neurons using electochemical energy

24
Q

What is a neuroplasticity?

A

The brains ability to physically change in response to a experience.

25
Q

What is synaptic plasticity?

A

The ability of the synaptic connections to change over time in response to a experience.

26
Q

What is long-term potentiation? (LTP)

A

The increase in synaptic strength through high frequency stimulation of the neural pathway.

27
Q

What is long-term depression? (LTD)

A

The decrease of the efficiency of synaptic connections

28
Q

What is sprouting?

A

The creation of new connections between neurons.

29
Q

What is rerouting?

A

The re-establishing of neural pathways by making alternate pathways.

30
Q

What is pruning?

A

The removing of old neural pathways that are not adequately activated.

31
Q

What is the enteric nervous system?

A

apart of the autonomic system that consists of nerve cells that line the gastro tract and controls the digestive system.