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Tracts...
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Difference between optic tract and optic nerve?
Bundles of neuron processes are called tracts in the cns and nerves in the pns
What are bundles of fibers that connect the CNS with the rest of the body?
Bundles of fibres running between the Central Nervous System (CNS) and all the tissues of the body are called Nerves. These nerves make up the Peripheral Nervous System (PNS). The correct name for the fibres in these bundles is Axons which are the long part of neuron cells carrying the signal from the cell body to the Target Tissue.
Which type of cell produces the myelin covering around the axon of a neuron?
In the central nervous system, neuronal axons are myelinated by oligodendrocytes. In the peripheral nervous system axons are myelinated by Schwann cells.
What system does axon belongs to?
Axons belong to the nervous system.
Which tissue is reinforced by white fibers only?
Myelinated axons in the central and peripheral nervous systems.
Difference between optic tract and optic nerve?
Bundles of neuron processes are called tracts in the cns and nerves in the pns
What are bundles of fibers that connect the CNS with the rest of the body?
Bundles of fibres running between the Central Nervous System (CNS) and all the tissues of the body are called Nerves. These nerves make up the Peripheral Nervous System (PNS). The correct name for the fibres in these bundles is Axons which are the long part of neuron cells carrying the signal from the cell body to the Target Tissue.
Which type of cell produces the myelin covering around the axon of a neuron?
In the central nervous system, neuronal axons are myelinated by oligodendrocytes. In the peripheral nervous system axons are myelinated by Schwann cells.
Are axons efferent or afferent?
They can be both. Afferent axons carry (sensory) information toward the central nervous system; efferent axons carry (motor command) information away from the central nervous system towards the muscles and glands. Think "affect" vs. "effect" or "arrive" vs. "exit".
What are the Ascending pathways of the central nervous system composed of?
The Ascending pathways of the central nervous system is made of "White Matter." (Vast amount of Axons coated with a sheath of Myelin)
What are 2 main parts of nervous system?
The central nervous system (CNS) and the peripheral nervous system (PNS)
Which autoimmune disease destroys the covering of axons of the central nervous system?
Multiple sclerosisMultiple Sclerosis
What carries messages to and from the central nervous system?
Nerves carry information to the brain. Nerves are bundles of axons that are long and thin and are found in the peripheral nervous system.
How do nerve axons enhance speed of nerve impulse transmission?
By being wrapped in myelin sheaths, produced by Schawann cells in the peripheral nervous system and oligodendrocytes in the central nervous system.
What are the processes of the nervous system?
dendrites and axons
What is the location of the perineurium connective tissue covering?
it surrounds fascicles of nerve fibers (axons) in the peripheral nervous system
What system does axon belongs to?
Axons belong to the nervous system.
