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What is the critical point called node of ranvier neurotransmitter threshold?
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The gap between schwarm cells in the peripheral system is called a?
Nodes of Ranvier
What are the small sacs within the axon terminal called?
They are called as vesicles. They are constantly created. They contents the neurotransmitter. Neurotransmitter is required for transmission of the nerve impulse.
Movement of impulse from one node of Ranvier to the next node of Ranvier is termed?
It is called as saltatory conduction. The term has come from the Latin word saltare. That means to hop or to leap. The conduction rate is greatly hastened by this method.
The transport mechanism for a neurotransmitter across the synaptic cleft is called?
simple diffusion
What is the pleasure producing transmitter in the brain called?
Dopamine is the pleasure-producing neurotransmitter in the brain.
Gaps between segments of oligodendrocytes or between individual schwann cells are called?
The spaces along the axon and between the myelin sheath are known as the nodes of Ranvier. They are responsible for speeding up the signals that are transmitted along the axon of the nerve. While the myelin sheath consists of many layers that protect the axon, the nodes of Ranvier are uncovered, giving them the ability to produce an electrical charge.
What are the tiny gaps between adjacent schwann cells called?
Remember that the Schwann cells are made of myelin sheath which insulate the impulse, but also block the sodium ion/potassium ion channels. Therefore there has to be a point where the action potential 'jumps' to, and these are the gaps between the Schwann cells, they are called the Nodes of Ranvier.
What are the gaps called where the axon membrane is exposed?
Nodes of Ranvier
The gap between schwarm cells in the peripheral system is called a?
Nodes of Ranvier
What is the area between neurons across which nerve impulses travel?
no, synapse. node of ranvier is between axon and dendrites
A chemical found in the synaptic vesicles that when released has an effect on the next cell is called a?
neurotransmitters
What is the substance released at axon terminals?
The substance that is released at an axonal ending to propagate the nerve impulse to the next nerve or muscle is called
Why is the nodes ranvier spaced equally along the axon?
The nodes Ranvier are spaced equally along the axon because of their function which is to transmit information to the different glands, muscles and neurons. The axon is also called a nerve fiber.
What are the small sacs within the axon terminal called?
They are called as vesicles. They are constantly created. They contents the neurotransmitter. Neurotransmitter is required for transmission of the nerve impulse.
What is the trigger point at which a neuron will fire called?
Its where there are a lot of sodium channels. Once the trigger zone is 'triggered' to threshold (from -70mV to -55mv), then an action potential occurs. trigger zone in MOTOR neurons are in the axon hillock and in SENSORY neurons, they're in the 1st unmyelinated area (first node of ranvier).
What are the gaps in the myelin sheath that create non-insulated areas along an axon?
nodes (:I do not disagree with that answer, but I just want to point out that the nodes have a special name. They are called Nodes of Ranvier, named after the man that discovered them (so Ranvier is capitalized). C:
The minimum stimulus needed to cause a contraction is called the?
threshold stimulus
