In the sympathetic division of the autonomic system: preganglionic neurons originate in the thoracolumbar segments of the cord the preganglionic neurons are unmyelinated the preganglionic neurons are long the neurotransmitter released by the preganglionic neurons is norepinephrine
In the sympathetic division of the autonomic system: preganglionic neurons originate in the thoracolumbar segments of the cord the preganglionic neurons are unmyelinated the preganglionic neurons are long the neurotransmitter released by the preganglionic neurons is norepinephrine
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:In the sympathetic division of the autonomic system:
1. Preganglionic neurons originate in the thoracolumbar segments of the cord.
2. The preganglionic neurons are unmyelinated.
3. The preganglionic neurons are long.
4. The neurotransmitter released by the preganglionic neurons is norepinephrine. (Correct answer)
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Step 1
The autonomic nervous system is responsible for maintaining the internal environment in equilibrium. The major functions are- regulation of respiratory rate, body temperature, heart rate, secretions from glands, excretion, and gastrointestinal motility. The division of ANS- Sympathetic nervous system and Parasympathetic nervous system.
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