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What are teased nerve fibers?
Teased nerve fibers are nerve fibers that have been carefully dissected and separated for study under a microscope. This technique allows researchers to examine the individual components and structures of a nerve fiber in detail.
What is non-myelinated nerve fiber?
a nerve fiber that lacks the fatty myelin insulating sheath. Such fibers form the gray matter of the nervous system, as distinguished from the white matter of myelinated fibers. Also called nonmedullated nerve fiber.
Which autonomic motor fibers are carried by the vagus nerve?
Vagus nerve carries parasynpathetic nerve fibers .
Are efferent nerve fibers described as motor nerve fibers?
Yes, efferent nerve fibers are often described as motor nerve fibers. Efferent nerves carry signals away from the central nervous system to muscles and glands, controlling movement and bodily functions.
What is the final step in the release of norepinephrine from the sympathetic neuron?
The final step in the release of norepinephrine from the sympathetic neuron involves the fusion of vesicles containing norepinephrine with the cell membrane, leading to the release of norepinephrine into the synaptic cleft. This process is triggered by an action potential reaching the nerve terminal.
Which division of the autonomic nervous system is involved in secreting norepinephrine via adrenergic nerve fibers?
Sympathetic nervous system .
What fibers are the sweat glands innervated by?
Sweat glands are innervated by adrenergic sympathetic nerve fibers from the autonomic nervous system. These fibers release norepinephrine, which stimulates the sweat glands to produce sweat.
What nerve fibers are most important in regulating blood flow?
Sympathetic nerve fibers are the most important in regulating blood flow, as they can cause vasoconstriction or vasodilation in blood vessels. These fibers release norepinephrine which can act on smooth muscle cells in the blood vessel walls to control blood flow throughout the body.
Help to counteract nerve agent poisoning?
Nerve agents are acetylcholinesterase inhibitors. Acetylcholinesterase is an enzyme that breaks down acetylcholine at nerve synapses. The antidote to counteract the nerve agent is an anticholinergic drug, such as atropine.
Are efferent nerve fibers also described as motor nerve fibers?
yes
What is The name of the Microscopic nerve fibers in the myocardium?
the microscopic nerve fibers are called chemocytes
A bundle of nerve fibers?
The bundle of the nerve fibers is a collection of the threadlike extension of the nerve cell that consists of the myelin sheath and axon in the nervous system. There are nerve fibers in the peripheral nervous system and the central nervous system.
What insulates nerve fibers?
Myelin insulation insulates nerve fibers by wrapping around them and forming a protective sheath. This myelin sheath helps to increase the speed of nerve impulse conduction along the nerve fibers.
What are teased nerve fibers?
Teased nerve fibers are nerve fibers that have been carefully dissected and separated for study under a microscope. This technique allows researchers to examine the individual components and structures of a nerve fiber in detail.
Is the glossopharyngeal nerve the only cranial nerve that contains sensory fibers?
No, the glossopharyngeal nerve (CN IX) is not the only cranial nerve that contains sensory fibers. Other cranial nerves, such as the trigeminal nerve (CN V), facial nerve (CN VII), vestibulocochlear nerve (CN VIII), and vagus nerve (CN X), also contain sensory fibers in addition to motor or mixed fibers.
The short branched nerve fibers on the nerve cell that are the receptive areas of the neuron are known as the?
the short branched nerve fibers on the nerve cell are called dendrites
What is non-myelinated nerve fiber?
a nerve fiber that lacks the fatty myelin insulating sheath. Such fibers form the gray matter of the nervous system, as distinguished from the white matter of myelinated fibers. Also called nonmedullated nerve fiber.
