Definition of Autonomic nervous system

1. Noun. The part of the nervous system of vertebrates that controls involuntary actions of the smooth muscles and heart and glands.


Definition of Autonomic nervous system

1. Noun. (neuroanatomy) In humans and other vertebrates, the part of the nervous system that regulates the involuntary activity of the heart, intestines and glands. These activities include digestion, respiration, perspiration, metabolism, and the modulation of blood pressure. ¹

¹ Source: wiktionary.com

Medical Definition of Autonomic nervous system

1. Neurons that are not under conscious control, comprising two antagonistic components, the sympathetic and parasympathetic nervous systems. The autonomic nervous system regulates key functions including the activity of the cardiac (heart) muscle, smooth muscles (e.g., of the gut), and glands. The autonomic nervous system has two divisions: 1. The sympathetic nervous system that accelerates the heart rate, constricts blood vessels, and raises blood pressure. 2. The parasympathetic nervous system slows the heart rate, increases intestinal and gland activity, and relaxes sphincter muscles. (03 Jul 1999)

Lexicographical Neighbors of Autonomic Nervous System

autonomation
autonomations
autonomic
autonomic agents
autonomic denervation
autonomic disorder
autonomic epilepsy
autonomic ganglia
autonomic ganglion
autonomic hyperreflexia
autonomic imbalance
autonomic motor neuron
autonomic motor neurons
autonomic nerve
autonomic nerve block
autonomic nervous system (current term)
autonomic nervous system diseases
autonomic neurogenic bladder
autonomic neuropathy
autonomic nuclei
autonomic part
autonomic pathways
autonomic plexus
autonomic plexuses
autonomically
autonomies
autonomism
autonomist
autonomists
autonomotropic

Literary usage of Autonomic nervous system

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Anatomy of the Nervous System by Stephen Walter Ranson (1920)
"IMPORTANT CONDUCTION PATHS BELONGING TO THE autonomic nervous system Thanks to the work of Langley, we know that the conduction pathways in the sympathetic ..."

2. Principles of Animal Biology by Aaron Franklin Shull, George Roger Larue, Alexander Grant Ruthven (1920)
"Functions of the Sympathetic or autonomic nervous system.—Neurons from this system supply the smooth muscle of the viscera, the cardiac muscles, ..."

3. A Text-book of physiology for medical students and physicians by William Henry Howell (1913)
"THE SYMPATHETIC OR autonomic nervous system. The chain of nerve ganglia extending on each side of the spinal column to the coccyx is known as the ..."

4. The Nervous System and Its Conservation by Percy Goldthwait Stiles (1917)
"CHAPTER IX THE autonomic nervous system THE term which is used as the title of this chapter is employed to cover that part of the efferent system which does ..."

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