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Microscopic fiber that carries the nervous impulse along nerve cell?
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.
What is a long nerve fiber that convey electrical impulses to other cells is called a?
A long nerve fiber that conveys electrical impulses to other cells is called an axon. Axons are part of nerve cells (neurons) and are responsible for transmitting signals to other neurons, muscles, or glands. Some axons can be quite long, extending from the brain or spinal cord to distant parts of the body.
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 muscle fiber or gland cell that responds to the efferent impulses?
The muscle fiber or gland cell that responds to efferent impulses is known as the effector. Effector cells receive signals from motor neurons and carry out the response, such as contracting or secreting a substance. This is part of the efferent pathway in the nervous system that controls the body's actions and functions.
What is the significance of the node of Ranvier in the conduction of nerve impulses?
The node of Ranvier plays a crucial role in the conduction of nerve impulses by allowing for faster and more efficient transmission of electrical signals along the nerve fiber. This is because the gaps at the node of Ranvier help to regenerate the electrical signal, allowing it to travel more quickly down the nerve fiber.
Which fiber tract carries impulses from the cerebrum to lower CNS areas?
The corticospinal tract carries impulses from the cerebrum to lower CNS areas, primarily to control voluntary movements throughout the body. It is involved in motor function and helps in coordinating muscle movements.
What is a long nerve fiber that carries impulses from one nerve cell to the next called?
an axon
A long nerve fiber that carries impulses from one nerve cell to the next?
It's called an axon.
What is the fiber in a neuron that carries signals away from the cell body?
The fiber in a neuron that carries signals away from the cell body is called the axon. Axons transmit electrical impulses, known as action potentials, to other neurons, muscles, or glands. They can be quite long and are often covered by a myelin sheath, which helps increase the speed of signal transmission.
Microscopic fiber that carries the nervous impulse along nerve cell?
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.
What fiber transmits impulses to the central nervous system?
The fiber that transmits impulses to the central nervous system is called an afferent or sensory fiber. These fibers carry sensory information from receptors in the body to the brain and spinal cord, allowing for the perception of different sensations like touch, temperature, and pain.
What is a long nerve fiber that convey electrical impulses to other cells is called a?
A long nerve fiber that conveys electrical impulses to other cells is called an axon. Axons are part of nerve cells (neurons) and are responsible for transmitting signals to other neurons, muscles, or glands. Some axons can be quite long, extending from the brain or spinal cord to distant parts of the body.
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.
Does an unmyelinated fiber conduct impulses faster than a myelinated fiber?
False
What is the narrow tube that carry impulses of light?
The narrow tube that carries impulses of light is called an optical fiber. It is made of a core surrounded by a cladding, both typically composed of glass or plastic, which allows light to be transmitted over long distances with minimal loss. Optical fibers are widely used in telecommunications, medical instruments, and networking due to their efficiency and high bandwidth capabilities.
Is fiber optic immune to electromagnetic interference and radio frequency interference?
Yes. It is immune to EMF (electromagnetic interference) and does not create its own EMI. Also, it is immune to RFI, or radio frequency interference. This is because fiber optic carries signals as light waves instead of electrical impulses.
What are components of a nerve fiber?
A nerve fiber consists of the axon, which transmits nerve impulses, along with protective covering called myelin sheath, Schwann cells that produce myelin, and the endoneurium which surrounds individual nerve fibers.
