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Transcript of CNS Depressants
The brain and other nerves throughout the body contain special kind of cells called Neurons.
Neurons are specialized cells and allow our brain to learn, reason, remember and experience emotions.
Every time something is felt or thought – including the effects of a drug- millions of neurons are “firing” messages to and from one another. The messages consist of chemicals and electrical impulses.
Neurotransmitters are the mechanism by which the messages travel from neuron to neuron. The most prominent neurotransmitter involved in the pleasurable and addictive effects of drugs is dopamine.
Disruption of neuron activity, called neurotransmitter dysregulation is associated with the disease of chemical dependence, in this case we are discussing CNS depressants. The depressants fill/block receptors located on the post-synaptic membrane, and in turn, doesn't allow neurotransmitters to be received by the receptors on the post-synaptic neuron.
Depressants are the drugs that cause the body to relax and slow down of the nerve cell (brain) activity in all or a portion of the central nervous system (CNS).
The desired effect produces relief from anxiety, inhibitions, induces relaxation and sleep. However, it may also cause unconsciousness and coma.
The predominate tendency of these drugs is to inhibit the excitability of neurons.
i.e. drugs that produce sleep
Addiction is a possibility with depressants
Different classes of CNS depressants work in unique ways. It is through their ability to increase GABA- gamma-aminobutyric acid and thereby inhibit brain activity to produce a drowsy or calming effect beneficial to those suffering from anxiety of sleep-disorders.
i.e depressants slows normal brain function, most of which act on the brain by affection the neurotransmitter.
What is the Central Nervous System?
What are CNS depressants?
How does CNS depressants affect the body?
Types of CNS depressants
What is the CNS?
The nervous system is the body's control and communication network. In humans, this system:
Senses change both in and outside of the body (sensory function)
Interprets and explains the changes (the integrative function)
Responds to the interpretation by making muscles interact and glands secrete hormones or other chemicals into the circulatory system ( the motor function)
The nervous system is comprised of the Central Nervous System (CNS) and the Peripheral nervous system (PNS)
The CNS includes the brain and the spinal cord and acts as a control center.
Within the CNS, nerve cells communicate with each other to allow feeling, thinking, learning, and behaving. The brain is the physical organ in which these things occur, “the mind” is the seat of consciousness and higher functions, such as cognition, reasoning, will and emotion.
Schedule IV- low potential for abuse
Insomnia, anxiety, Librium
There are many more
Types of CNS depressants:
Slowed pulse and breathing
Lowered blood pressure
Lack of coordination
Inability to urinate
Need larger doses
Long-term use of depressants
Anxiety or panic attacks
Commonly used names:
Though depressants can help the body, they are
harmful to the body and treatment may be needed……
Functional loss and recovery