| The Central Nervous System | The Cerebrum and the Hindbrain | The Limbic System | The Neuron and Neurotransmission | Impact of Psychoactive Drugs on CNS |
|---|---|---|---|---|
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What is the central nervous system composed of?
The brain and spinal cord.
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Where does the cerebrum generally take place?
The outer layer.
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Where does the Limbic System generally take place?
The center of the brain.
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What is neurotransmission?
Neurotransmitters are often referred to as the body's chemical messengers. They pass messages between the bodies neurons.
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What are psychoactive drugs?
A drug or other substance that affects how the brain works and causes changes in mood, awareness, thoughts, feelings, or behavior
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What are the four parts of the brain.
The cerebrum, the hindbrain, the limbic system, and specific regions.
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What lobe mainly deals with decision making?
The frontal lobe.
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What is the amygdala responsible for?
For emotional responses, especially fear.
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What is an example of neurotransmission?
The release of serotonin and dopamine.
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What category of psychoactive drug is alcohol.
It is a depressant.
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Where does the brain and spinal cord meet?
At the base of the brain, the brain stem connects to the spinal cord and is made up of the midbrain, pons, and medulla oblongata.
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What are the different parts of the hindbrain?
The cerebellum, medulla oblongata, pons, and the spinal cord.
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What does the thalamus do?
It is the brains sensory switchboard, it processes all sensory information (Touch, hearing, taste, etc.) except smell.
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True or false: A neuron will NOT always fire at the same intensity.
FALSE.
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What are the three psychoactive drug categories?
Stimulants, depressants, and hallucinogenics.
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What are the five parts of the spinal cord?
The cervical, thoracic, lumbar, sacral, and the coccygeal.
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What are the four parts of the cerebrum?
The frontal lobe, parietal lobe, temporal lobe, and the occipital lobe.
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What is responsible for your spacial navigation?
The hippocampus.
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What is the connection between neurons and neurotransmitters?
Neurons communicate with each other via electrical events called 'action potentials' and chemical neurotransmitters.
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What do stimulants do?
Stimulants increase the release of dopamine, a neurotransmitter in the brain that regulates the feelings of pleasure and alters the control of movement, cognition, motivation, and euphoria.
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What's the difference between parasympathetic nerves and sympathetic nerves?
The sympathetic nervous system is involved in preparing the body for stress-related activities; the parasympathetic nervous system is associated with returning the body to routine, day-to-day operations.
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Whats the difference between the medulla and the pons?
The medulla is important in passing messages between your spinal cord and brain. The pons is involved in communication between different parts of the brain, and sensations such as hearing, taste, balance, and breathing.
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What is the limbic system composed of?
The thalamus, hypothalamus, hippocampus, amygdala, and the pituitary gland.
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What are the five parts of a neuron?
The soma, dendrites, axon, myelin sheath, and the terminal button.
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Impact of Psychoactive Drugs on CNS.
Psychoactive drugs disrupt the communication between neurons (brain cells), so abusing them can have serious short- and long-term effects on the brain.
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