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epinephrine
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∙ 10y ago
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Which division of the autonomic nervous system is involved in secreting norepinephrine via adrenergic nerve fibers?
Sympathetic nervous system .
What substance slows the message passing from the brain to the rest of the body?
Unmyelinated nerve fibers are slower than myelinated nerve fibers. The fibers covered by myelin are much faster.
Is acetylcholine the substance released by axonal endings of the somatic efferent fibers and by the parasympathetic nerve fiber endings?
Yes, it does. In contrast, the sympathetic nerves release adrenaline
What is the meaning of myelin?
A soft white substance constituting the medullary sheats of nerve fibers, and composed mainly of cholesterin, lecithin, cerebrin, albumin, and some fat., One of a group of phosphorized principles occurring in nerve tissue, both in the brain and nerve fibers.
What is the substance released at axon terminals?
The substance that is released at an axonal ending to propagate the nerve impulse to the next nerve or muscle is called
Which autonomic motor fibers are carried by the vagus nerve?
Vagus nerve carries parasynpathetic nerve fibers .
Are efferent nerve fibers also described as motor nerve fibers?
yes
Are efferent nerve fibers described as motor nerve fibers?
Yes.
What ia a substance?
What is chromatophilic substance? The chromatophilic substance, of Nissl bodies, are the orderly arrangement of rough endoplasmic reticulum. The proteins from these Nissl bodies are used to restore peripheral nerve fibers.
What is The name of the Microscopic nerve fibers in the myocardium?
the microscopic nerve fibers are called chemocytes
What is a anti-adrenergic drug?
Antiadrenergic drugs decrease or block effects of sympathetic nerve stimulation, endogenous catecholamines (e.g. epinephrine), and adrenergic drugs.
What ia a chromatophilic substance?
What is chromatophilic substance? The chromatophilic substance, of Nissl bodies, are the orderly arrangement of rough endoplasmic reticulum. The proteins from these Nissl bodies are used to restore peripheral nerve fibers.
