Sympathetic and para sympathetic nervous system, Biology

Assignment Help:

SYMPATHETIC NERVOUS SYSTEM

  1. These sympathetic chain are connected with ramus comminicause of thoracic & lumber part.
  2. Due to this reason this system is called as thoraco-lumber out flow.
  3. The nerve fibres which are situated between sympathetic chain & CNS are called as pre ganglionic nerve fibres.
  4. Nerve fibres situated between sympathetic chain & visceral organs are called as post ganglionic nerve fibres.
  5. Pre ganglionic nerve fibres are small & post ganglionic are large.
  6. Some post ganglionic nerve fibres originate from ganglionic chain & form cervicle ganglion that sends nerve to iris, lacrymal & salivary.
  7. Some post GNF do not form ganglion but they supply direct to visceral organs such as heart & lung.
  8. Sub ganglions are found in abdominal cavity such as coeliac ganglion, sup. mesentric ganglion & inf. mesentric ganglion.
  9. Nerve fibres of sup. mesenteric ganglion are mainly supply to the excretory organs & partly supply to distal part of alimentary canal.
  10. Nerve fibres of inf. mesenteric ganglion are mainly supplied to the reproductive organ & partly supply to excretory organs.

PARA SYMPATHETIC NERVOUS SYSTEM

1389_autonomic nervous system.png

  1. Made up of pera sympathetic ganglion but these ganglion are not connected with each other, they are found in scattered form.
  2. They are situated class to visceral organ so pre ganglionic nerve fibres are long & post ganglionic nerve fibres are small.
  3. These ganglions are connected with 3, 7, 9 & 10 cranial nerves & ramus connunae of sacral part.
  4. 3rd cranial nerve forms cilliary ganglion. 7th cranial nerve forms sub mendibular ganglion.
  5. 9th cranial nerve forms otic ganglion. 10th cranial nerve forms pre ganglionic fibres in the thoracic region & its branches are supply to heart, lungs & different parts of alimentary canal.
  6. Ramus communicanes of sacral part form many ganglions to excretory & reproductive organs.

Note :-

  1. Nerve fibres which secrete the acetylcholine are cholinergic.
  2. Nerve fibres which secrete adrenalin & nor adrenlin are adrenergic.
  3. In sympathetic pre ganglionic nerve fibres are cholinergic & post GNF are adrenergic.
  4. In pera symphathetic both are cholinergic. Action of adrenergic is fast than acetylcholine.
  5. Para symphathetic is more affective in the condition of happiness & at sexual desire.
  6. Sympathetic is more effective in condition of fear, stress, tension, sorrow & excitement (emergency condition).

Related Discussions:- Sympathetic and para sympathetic nervous system

Nutritional requirements of fats and oils during pregnancy, Define Nutritio...

Define Nutritional Requirements of Fats and Oils during Pregnancy and Lactation? ICMR (1990) recommends that linoleic acid requirements should be raised to 4.5 en% during pregn

Aortic valve replacement with replacement of aortic root, Aortic Valve ...

Aortic Valve Replacement with Replacement of Aortic Root :  When there is aneurysm of ascending aorta with aortic regurgitation, aortic root replacement is done. This

protozoa, What is the taxonomy of protozoa

What is the taxonomy of protozoa?

Inrinsic conduction system of the heart, The cardiovascular system controls...

The cardiovascular system controls the movement of blood through thousands of miles of capillaries so that every tissue  in every part of the body is perfused. Essential nutrients

Gas exchange, what arethe organs of respirationin the lower form of animals...

what arethe organs of respirationin the lower form of animals?

Fever, what are the two benefits of fever with explaination??

what are the two benefits of fever with explaination??

Explain the confirmed test - most probable number test, Explain the Confirm...

Explain the Confirmed Test - Most Probable Number Test? Confirmed test is carried out to rule out the possibility of any positive presumptive test because of the presence of no

Explain surface properties of proteins, Explain Surface properties of prote...

Explain Surface properties of proteins The surface properties relates primarily to surface tension, a) Emulsification  and b) Foaming characteristics of proteins,

Explain surviving implants, What is Surviving Implants It is a term des...

What is Surviving Implants It is a term described by Albrektsson that applies to implants that are still in function but have not been tested against success criteria. Such as

Percussive instruments-coronal disassembly devices, Percussive instruments ...

Percussive instruments -Crown and bridge remover CORONA flex I. Nitch -it's tip look like the curette and has hock -4 or 5 tips according to tooth position and accessib

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd