how does message transfer through nerve cells?
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The message transfer through nerve cells by synapses ( a chemically membrane between two nerve cells).
niskarsh1218:
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✔ Nerve cell transmits message in the form of impulse.
==> The insulated sheath that surrounds the core of the nerve fibre or the axon of the neuron is called myelin sheath. It consists of the fat containing cells called the Schwann cells and helps in the fast transmission of nerve impulse. The myelin sheath is impermeable to ions. As a result, the ionic exchange and depolarisation of nerve fibre is not possible along the whole length of nerve fibre.
The conduction in which nerve impulse jumps along the myelinated axons from one node of Ranvier to the next node, then it is called saltatory conduction. During development of neurons, the Schwann cells in PNS and oligodendrocytes in CNS wrap around the axon of nerve cells, forming an insulation cover on axon. At some points along the length of axon, there are gaps in insulation. These gaps are called nodes of Ranvier. Voltage gated sodium ion channels are restricted only to these nodes. As a result, nerve impulse jumps node to node instead of travelling along the entire length of axon. This speeds up the conduction.
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HOPE IT HELPS U !!
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HERE IS YOUR ANSWER !!
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✔ Nerve cell transmits message in the form of impulse.
==> The insulated sheath that surrounds the core of the nerve fibre or the axon of the neuron is called myelin sheath. It consists of the fat containing cells called the Schwann cells and helps in the fast transmission of nerve impulse. The myelin sheath is impermeable to ions. As a result, the ionic exchange and depolarisation of nerve fibre is not possible along the whole length of nerve fibre.
The conduction in which nerve impulse jumps along the myelinated axons from one node of Ranvier to the next node, then it is called saltatory conduction. During development of neurons, the Schwann cells in PNS and oligodendrocytes in CNS wrap around the axon of nerve cells, forming an insulation cover on axon. At some points along the length of axon, there are gaps in insulation. These gaps are called nodes of Ranvier. Voltage gated sodium ion channels are restricted only to these nodes. As a result, nerve impulse jumps node to node instead of travelling along the entire length of axon. This speeds up the conduction.
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HOPE IT HELPS U !!
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