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Cocaine blocks the removal of Dopamine from the synaptic cleft, causing the existing Dopamine to bind again and again, overstimulating the cell. At first the cell just fritzes out- producing the high. But then, to counteract the extra stimulus, the body starts to remove Dopamine receptors. That's why it takes an ever increasing amount of cocaine (or meth or whatever stimulant you choose) to produce a similar high.
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How does the myelin sheath and synapse affect nerve impulses speed up or slow down?
The myelin sheath acts as an insulating layer that helps speed up nerve impulses by allowing them to "jump" between gaps in the sheath called nodes of Ranvier. This process, known as saltatory conduction, accelerates the transmission of nerve impulses along the axon. At the synapse, neurotransmitters are released to transmit signals between neurons. The efficiency of this process can also affect the speed of nerve impulse transmission.
What is the advantage of saltatory conduction in nerve impulses?
The advantage of saltatory conduction in nerve impulses is that it allows for faster transmission of signals along the nerve fibers. This is because the electrical impulses "jump" from one node of Ranvier to the next, rather than traveling continuously along the entire length of the nerve fiber. This speeds up the transmission of signals and conserves energy for the nerve cell.
Which nerve fiber do impulses travel slowly?
Unmyelinated nerve fibers conduct impulses more slowly than myelinated nerve fibers. Myelinated nerve fibers have a fatty substance called myelin sheath that allows for faster transmission of impulses compared to unmyelinated fibers without this sheath.
What is the function of the nodes of Ranvier in the propagation of nerve impulses?
The nodes of Ranvier are gaps in the myelin sheath that help speed up the transmission of nerve impulses by allowing the electrical signal to jump from one node to the next, a process known as saltatory conduction. This helps the nerve impulses travel faster along the nerve fiber.
What is any drug that inhibits transmission of sensory impulses at a synapse?
A drug that inhibits transmission of sensory impulses at a synapse is a nerve block agent. These drugs work by blocking the transmission of nerve signals through the synapse, effectively reducing or eliminating sensation in a specific area of the body. Nerve block agents are commonly used for regional anesthesia and pain management procedures.
What are all the systems that nerve agents can affect?
Nerve agents affect the transmission of nerve impulses in your nervous system. Nerve agents can affect the central nervous system, the respiratory system as well as cholinergic nervous system.
Which Mineral is necessary for transmission of nerve impulses in the nerve fibers?
Zinc
What major mineral is required for transmission of nerve impulses?
neuro transmitter is essential for the transmission of nerve impulses in nerve fibres.it is a chemical which is present in the axon terminal bulb(ending of a neuron).
Providing a pathway for the transmission of nerve impulses is the responsibility of the?
peripheral nerve system
How does the myelin sheath and synapse affect nerve impulses speed up or slow down?
The myelin sheath acts as an insulating layer that helps speed up nerve impulses by allowing them to "jump" between gaps in the sheath called nodes of Ranvier. This process, known as saltatory conduction, accelerates the transmission of nerve impulses along the axon. At the synapse, neurotransmitters are released to transmit signals between neurons. The efficiency of this process can also affect the speed of nerve impulse transmission.
What provides for the transmission of nerve impulses way from the cell body?
'Axons'
What cranial nerve Transmits motor impulses that affect heart rate?
Optic nerve
The most rapid nerve impulses are impulses that are carried?
The most rapid nerve impulses are carried by myelinated nerve fibers, which have a fatty sheath called myelin that enables faster signal transmission. These fast nerve impulses are crucial for quick reflex actions and communication between different parts of the body. Unmyelinated fibers are slower in transmitting nerve impulses compared to myelinated fibers.
Which two elements are needed to help nerve cells send electrical signals?
It's Sodium and Potassium are necessary for the transmission of nerve impulses
What is the advantage of saltatory conduction in nerve impulses?
The advantage of saltatory conduction in nerve impulses is that it allows for faster transmission of signals along the nerve fibers. This is because the electrical impulses "jump" from one node of Ranvier to the next, rather than traveling continuously along the entire length of the nerve fiber. This speeds up the transmission of signals and conserves energy for the nerve cell.
What are chemicals that retard behavior by either speeding up or slowing down nerve impulses?
Chemicals that retard behavior by affecting nerve impulses can include depressants like alcohol, benzodiazepines, and barbiturates, which slow down nerve impulses. Stimulants like amphetamines and cocaine can speed up nerve impulses. These substances can alter brain function and behavior by modulating neurotransmitters in the brain.
Why is the transmission of nerve impulses often referred to as an electrochemical event?
Myogenic conduction
