Question

The nursing instructor is preparing a lecture on the Autonomic Nervous System. Explain what would be important for him/her to share with students regarding the differences between the sympathetic and parasympathetic system

Answer 1

The autonomic nervous system is also called as vegetativ or involuntary nervous system This is separate nervous system consisting of neurons and fibres and having some special and very important function. The word autonomic means Self Controlling a this term was introduced for the ganglia or masses of nerve cells & viscera innewaded by this system live heart & intestine this systero divided as 1. sympathetic, and 2. Para sympathetic . Sympathetic & Sympathetic system consists of two chains of ganglion situated on either side in relation to the vertebral column each of these ganglia has connecting fibers and this is called the sympathetic chain. The nerve fibres ppass to the corresponding nerve roots of the spinal nerves. Two important plexus i cardiac plexus ir Supplies to heart and lungs and the fa ii) coeliac Plexus Supplies sympathetic Ebres to the stomach of intestine and other viscera the action of sympathetic division are directly towa. rds mobilizing the body's energies for dealing with increase in activity

parasympathetic system This arises from the third, Seventh ninth & tenth cranial nerves and from the second third and fourth Sacrel segments of the spinal cord. The parasympathe Ac division is intended toward Censerving energy in the body. The functions mainly i Stimulation of parasympathetic Systems 2. Decreases the heart rate. 3. On the iris constricting of the pupil to protect the eye from intense sunlight 4. Increase in motility and tone of the smooth muscles of the gut and digestive glands. 5. Salivation, urination, sexual arousal and stimulating activity associcated with the fight response.