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

Meiosis comprises two separate divisions, All of the following make meiosis...

All of the following make meiosis different from mitosis; EXCEPT A. Meiosis comprises two separate divisions. B. Meiosis only occurs during embryonic development. C. Chromoso

Explain use of rifaximin, Rifaximin (Xifaxan)  An anon-absorbed oral an...

Rifaximin (Xifaxan)  An anon-absorbed oral antibiotic, was about as effective as ciprofloxacin for treatment of travelers' diarrhea, mostly caused by E. coli. It is not effecti

Explain flucytosine, Explain Flucytosine Flucytosine (Ancobon) - Potent...

Explain Flucytosine Flucytosine (Ancobon) - Potentially lethal, dose-related bone mar- row toxicity, colitis and rapid development of resistance when used alone limit the use o

Define absorption of calcium from dietary calcium supplement, Define Absorp...

Define Absorption of Calcium from dietary calcium supplements? Absorption from dietary calcium supplements is important to know, since they are almost universally recommended f

How are poriferans characterized, Q. Concerning digestion how are poriferan...

Q. Concerning digestion how are poriferans characterized? Sponges are diverse from other animals since they present only intracellular digestion. Do they release digestive enzy

Sunlight - aquatic habitats, Sunlight - Aquatic Habitats Sunlight is a...

Sunlight - Aquatic Habitats Sunlight is a major limiting factor for water bodies, since light rapidly diminishes as it passes down the column of water. The upper layers of the

Post removal technique using prs kit, Post removal Technique using PRS kit ...

Post removal Technique using PRS kit -Transmetal efficiently doming the post head . -Select suitable sized trephine . -Place drop of RC prep on the post head as lubrican

Explain cultivation of microorganisms, Explain Cultivation of microorganism...

Explain Cultivation of microorganisms It is for  the production of food colourants has attractions, these must be measured against the financial legislative and user constraint

What is biodiverse ecosystems, What are some economic applications that can...

What are some economic applications that can be generated by very biodiverse ecosystems? Very biodiverse areas show enormous economic potential. They can be a source of raw mat

Define rhizoids - types of hyphae, Define Rhizoids - Types of Hyphae? ...

Define Rhizoids - Types of Hyphae? Rhizoids - These are brown slender root like structures which arise in cluster from each node of the stolon. These penetrate the substratum

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