Expalin Visceral nervous system.

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,...
icon
Related questions
Question

Expalin Visceral nervous system.

Expert Solution
Introduction

The Nervous system is divided into three types namely,

a) Central Nervous System [CNS]

b) Peripheral Nervous System [PNS]

c) Autonomous Nervous System [ANS].

The ANS control involuntary functions of visceral organs. therefore, they are also known as visceral nervous system. The ANS is auto functioning and self governed. It is a part of peripheral neural system that innervates smooth muscles, glands and cardiac muscle. It controls and coordinates the involuntary activities of various organs. The controlling centre of ANS is in the hypothalamus.

Components of ANS

Autonomic neural system comprises of the following components:

a) Pre-ganglionic neuron whose cell body is in the brain or spinal cord; its myelinated axon exits the CNS as part
of cranial or spinal nerve and ends in an autonomic ganglion.

b) Autonomic ganglion consists of axon of pre-ganglionic neuron and cell bodies of post-ganglionic neuron.

c) Post-ganglionic neuron conveys nerve impulses from autonomic ganglia to visceral effector organs.

Division of ANS

The autonomic neural system consists of two divisions namely,

a) Sympathetic neural system

b) Parasympathetic neural system

Sympathetic Nervous System Parasympathetic Nervous System
It is considered as the flight or fight system. It is considered as ‘The Rest and Digest System’ or ‘The Feed and Breed System’.
It originates in the thoracic and lumbar region of the spinal cord. It originates in the cranial region of the brain and the sacral region of the spinal cord.
Its ganglia are linked up to form a chain. Its ganglia remain isolated.
Pre-ganglionic fibres are short while the post-ganglionic fibres are long. Pre-ganglionic fibres are long while the post-ganglionic fibres are short.
It is adrenergic due to the release of Noradrenaline at the terminal ends of the post-ganglionic fibres at the effector
organs.
It is cholinergic due to the release of Acetylcholine at the terminal ends of the post-ganglionic fibres at the effector
organs.
Active during stressful conditions. Active during relaxing time.
steps

Step by step

Solved in 5 steps with 1 images

Blurred answer
Knowledge Booster
Communication
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Biology 2e
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
Anatomy & Physiology
Anatomy & Physiology
Biology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:
9780815344322
Author:
Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:
W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:
9781260159363
Author:
Martin, Terry R., Prentice-craver, Cynthia
Publisher:
McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Inquiry Into Life (16th Edition)
Biology
ISBN:
9781260231700
Author:
Sylvia S. Mader, Michael Windelspecht
Publisher:
McGraw Hill Education