What are Neurotransmitters that have narcotic-like effects called?
Neurotransmitters are naturally occurring substances in the body. Those that have similar effects as narcotics are called endorphins. Endorphins are responsible for the feeling known as "runner's high".
There are major neurotransmitters that appear to account for most of the effects produced by the action of drugs of abuse on the brain?
There are two kinds of neurotransmitters - INHIBITORY and EXCITATORY. Excitatory neurotransmitters are not necessarily exciting - they are what stimulate the brain. Those that calm the brain and help create balance are called inhibitory. Inhibitory neurotransmitters balance mood and are easily depleted when the excitatory neurotransmitters are overactive.
There are how many major neurotransmitters that appear to account for most of the effects produced by the action of drugs of abuse on the brain?
Neurotransmitters the are means by which neurons communicate with one another. There are more than 30 compounds known to be neurotransmitters, and dozens of others are thought to be so. You will only find them in the peripheral nervous system as the central nervous system uses mainly electrical signals.
In a regular nerve synapse, not exposed to any antigens and in a healthy body, inhibitory, or preventative, neurotransmitters are released constantly to prevent the release of dopamine (<----neurotransmitters), a natural painkiller(or mood-lifter). When the body is severely damaged or injured, natural opiates are released and travel to the inhibitory neurotransmitters. When the opiates arrive at the inhibitory neurotransmitters, they enter the opiate receptors. Once this occurs, the dopamine neurotransmitters can be released and travel…
Neurotransmitters diffuse across the synaptic cleft (a very short distance) and bind to receptor proteins on the postsynaptic membrane. Excitatory neurotransmitters cause sodium ions to move through receptor proteins depolarizing the membrane. Inhibitory neurotransmitters do not depolarize the postsynaptic membrane. Thus, the condition that would produce inhibition at synapse is called HYPERPOLARIZATION.
the most common neurotransmitters include acetylcholine, epinephrine, and serotonin. Different neurotransmitters may have different effects depending on which part of the nervous system it is in. Acetylcholine, for example, is used in neuromuscular junctions in order for muscle contraction to occur.
Neurotransmitters are used to send messages from cell to cell, usually neuron to neuron. Neurotransmitters are released from the pre-synapse, which is at the axon terminus. These neurotransmitters are picked up by the post-synapse on the receiving cell. These post-synapses are located on structures called dendrites or on the cell body.