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Where does the nerve impulse travel from the reflex arc?
The nerve impulse travels through the reflex arc. It travels from the sensor through the sensory neurone, through the spinal cord and motor neurone to the effector muscle.
What is the main function if the nerve cells?
A neurone is a collection of specialized cells, along with supporting cells (oligodendrocytes), that convey or carry an electrical impulse to or away from the central nervous system.
What is the name of a neuron that transmits neural impulse from the sensory neuron to the motor neuron?
A relay neurone passes impulses from a sensory neurone to a motor neurone.
Which travels quicker through the body a nerve impulse or a hormons?
a nerve impulse
The neurotransmitters of a neutron enable a nerve impulse to do what?
they transport the nerve impulse through the synapses (:
Where does the nerve impulse travel from the reflex arc?
The nerve impulse travels through the reflex arc. It travels from the sensor through the sensory neurone, through the spinal cord and motor neurone to the effector muscle.
What is it when nerve impulses are interrupted and muscles don't react?
This can be caused by inhibitor molecules known as neurotoxins occupying the active sites of the receptor molecules of the postsynaptic neurone membrane, this prevents an action potential from being carried from the presynaptic neurone to the postsynaptic neurone, thus preventing the passage of a nerve impulse and consequental muscular contractions that produce an effect to stimuli
Which type of neurone transmits the impulse from a motor to a sensory neurone?
No, not directly. Some sensory neurons can detect the effect of a motor neuron firing.
What does a Neurone cell do?
A neurone is a nerve cell, they allow you to feel pain.
The events of a nerve impulse?
The electrical impulse in a nerve cell begins when ions move through the cells surface through ion channels.The nerve impulse.A nerve impulse is a wave of excitation that quickly travels within the surface of a neurone (nerve cell). This nerve impulse usually travels on certain parts of the nerve cell: on a dendrite or an axon. Within a neurone the first event depends on the type of 'nerve impulse'; there are two important types:1- nerve impulses generated at dendrites2- self propagating nerve impulses (action potentials) that travel along the axonNerve impulses generated at dendrites.Dendrites feed into the 'cell body' (soma) of a neurone. Nerve impulses that are generated in these dendrites travel toward the cell body.A sequence of events occur at the surface of a dendrite when the nerve impulse is sparked. The first event is transduction; this involves the transformation of one form of energy outside the dendrite into electrical energy within the dendrite.Nerve impulses that travel along axons.Nerve cells often have many dendrites but often only have a single axon. The essential difference between the two parts of the nerve cell is:- in dendrites electrical impulses travel TOWARDS the cell body of the neurone- in the axon the electrical impulses travel AWAY from the cell body of the neuroneThe nerve impulse that travels along an axon begins at the 'base of the axon', where the cell body and axon merge. This site is called the 'axon hillock' and is found to be the site where the first event in the formation of a nerve impulse actually occurs. Again, the first event is transduction at the axon hillock.Conclusion; the first event.For both of the cases above, and for virtually any other case, the nerve impulse begins with a process of transduction. The electrical nerve impulse begins once the first 'ions' leave or enter the nerve cell. Usually sodium ions enter, sometimes calcium ions are the firs to enter, sometimes potassium ions are the first to leave.
What is the main function if the nerve cells?
A neurone is a collection of specialized cells, along with supporting cells (oligodendrocytes), that convey or carry an electrical impulse to or away from the central nervous system.
What carries impulses away from neuron cell bodies?
The axon of the neurone carries the impulse away from the cell body. The axon of the neurone carries the impulse away from the cell body.
What is quicker a nerve impulse or a hormone?
nerve impulse
what is the covering of a fatty material that speeds up the passage of a nerve impulse?
The fatty tissue is called the myelin sheath (or just myelin), the part of the neurone it covers is the axon.
Where does a nerve impulse start?
A nerve impulse starts at the dendrite
What is the path that nervous impulse takes through the nervous system?
sensory neurone --> enters spinal cord --> relay neurone --> brain(is not a reflex action) or motor neurone(if action is reflex)
What is the name of a neuron that transmits neural impulse from the sensory neuron to the motor neuron?
A relay neurone passes impulses from a sensory neurone to a motor neurone.
