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Some nerve cells have fibers that grow out of the cell, which are called axons. Axons allow a nerve cell to connect to distant parts of the body, so that cells in the brain can send messages to, and receive messages from a toe, for example, which might be six feet away from the brain. Other nerve cells just connect to their immediate neighboring nerve cells, and therefore do not require axons; they instead have smaller extensions called dendrites.
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What cells show irritability and conductivity?
Neurons are highly irritable or excitable(responsive to stimuli). When a neuron is adequately stimulated, an electrical impulse is generated and conducted along the length of its axon. This response, called the action potential or nerve impulse, is always the same, regardless of the source or type of stimulus, and it underlies virtually all functional activities of the nervous system.The answer is NEURONS.
How Nervous system carries message?
The nervous system carries messages through a network of nerve cells called neurons. When a stimulus is detected, electrical signals are generated in the neurons and travel along the nerve cells in the form of action potentials. These action potentials allow for communication between different parts of the body and are transmitted across synapses to relay messages between neurons.
An efferent nerve takes an impulse towards the brain?
Efferent nerves carry signals away from the brain to muscles and glands, enabling movement and other bodily functions. A nerve impulse travels in one direction along these nerves, from the central nervous system to the periphery.
How does the nervous system send messages?
The nervous system sends messages through electrochemical signals. When a nerve cell (neuron) is stimulated, it generates an electrical impulse that travels along the neuron. At the end of the neuron, chemicals called neurotransmitters are released into the synapse, where they trigger a response in the next neuron in the circuit.
What is a disadvantage of unmyelinated nervous tissue when compared to myelinated tissue?
Unmyelinated tissue is substantially slower in conducting impulses along the axon. With myelinated axons, the action potential (impulse) jumps from node to node greatly increasing the speed of the impulse.
What are mircroscopic fiber that carries the nervous impulse along a nerve cell?
axon
Microscopic fiber that carries the nervous impulse along a nerve cell?
The microscopic fiber that carries the nervous impulse along a nerve cell is called an axon. Axons are long, slender projections of a nerve cell that transmit electrical signals away from the cell body to other neurons, muscles, or glands. These signals, known as action potentials, travel down the axon through a process called depolarization and repolarization.
What carries impulses from the skin to the central nervous system?
A pseudo-unipolar neuron referred to as an afferent neuron carries a sensory impulse to the spinal cord, which is part of the central nervous system.A pseudo-unipolar neuron has one axon which comes from the cell body (soma) and then splits into two branches, the peripheral axonal branch which carries the impulse from the skin, and the central axonal branch which carries the impulse to the spinal cord; it has no dendrites, which distinguishes it from a bipolar neuron.The impulse moves along the peripheral branch and then to the central branch, skipping the soma.
What is a nerve message called?
Well they are sent through the nervous system.
What is impulse in the nervous system?
electrical wave conducted along the nerve generated by the voltage difference across the cell membrane of the nerve cells.
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 wraps around larger axons?
Larger axons are typically wrapped with a fatty substance called myelin, which is produced by Schwann cells in the peripheral nervous system and oligodendrocytes in the central nervous system. Myelin serves as an insulating layer that helps to increase the speed and efficiency of nerve impulse conduction along the axon.
What kind of neuron carries impulses from the spinal cord and brain?
The somatic nervous system, which is part of the peripheral nervous system, delivers motor and sensory information along the central nervous system- essentially connecting things like the skin nerves to the brain.
What cells show irritability and conductivity?
Neurons are highly irritable or excitable(responsive to stimuli). When a neuron is adequately stimulated, an electrical impulse is generated and conducted along the length of its axon. This response, called the action potential or nerve impulse, is always the same, regardless of the source or type of stimulus, and it underlies virtually all functional activities of the nervous system.The answer is NEURONS.
What is the membrane of a nerve cell is comprised of?
Its main function is to propagate the action potential (the 'impulse') along the length of the axon.
How nervous impulse travel in body and diagram?
Nervous impulses travel along neurons through a process called action potential, which occurs when a neuron is stimulated by an external signal. This stimulation causes sodium ions to flow into the neuron, leading to a rapid change in electrical charge that propagates along the axon to the synapse. At the synapse, neurotransmitters are released to transmit the signal to the next neuron. A simple diagram would illustrate a neuron with labeled parts: dendrites, cell body, axon, and synaptic terminal, showing the direction of impulse travel.
What is the direction of impulse in a neuron?
A nerve impulse travels toward the actual nucleus itself to pass information.
