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Similar to Autonomic nervous system neuroanatomy splanchnic nerves sympathtic and parasympathtic nervous system
Similar to Autonomic nervous system neuroanatomy splanchnic nerves sympathtic and parasympathtic nervous system (20)
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Autonomic nervous system neuroanatomy splanchnic nerves sympathtic and parasympathtic nervous system
- 2. S1 AND S2
- 3. This is a sensory neuron shown that brings stimulus It takes sensory info to the brain upwards
- 5. While in parasympathetic nervous system ganglia are located near target organs
- 7. Another difference between sympathetic and parasympathetic nervous system is that the ganglia in sympathetic ns are so close to spinal cord so preganglionic neuron is shorter in length than postganglionic while in parasympathetic nervous system,preganglionic nerve fibre is longer bcz ganglion is close to or in the target organ
- 8. There are two neurotransmitters in autonomic ns:acetylcholine and noradrenaline (nor epinephrine).somatic ns all neurons release Acetylcholine at neuromuscular junc.In symp ns all preganglionic neurons also release Ach while all postganglionic neurons except those at sweat glands release noradrenaline.those at sweat glands release Ach.in parasym ns all release Ach.Adrenal medulla is directly innervated by preganglionic neurons of symp ns so it then releases adrenaline and NA into circulation
- 9. Sympathetic ns is a system of fight or flight as if u were to escape a lion so it would help u get a better vision to find a better escape route,the parasymp ns is a system of rest and digest hence pupils constrict and ciliary muscles contract so that pupils can dilate
- 10. Blood supply to ur muscles increases so that u can run away from the lion Roongtay kharay hjana
- 11. Active digestion No more food entry
- 13. SYMPATHTIC NS
- 15. Post gang neurons of some nerves do not leave via spinal nerve and grey ramus comm and these are called splanchnic nerves
- 17. SOMATIC SUPPLY LEAVES DIRECTLY THRU SPINAL NERVES AND GETS SUPPLY FROM AT LEAST ONE OF THE THORACIC VERTEBRAE
- 19. HEAD AND NECK SUPPLY IS ASCEND OR DESCEND VISCERAL SUPPLY
- 20. THORACIC NERVES TO HEART AND LUNGS ARE POST SYNAPTIC AND SPLANCHNIC-POST- SYNAPTIC NEURON WILL LEAVE THE SYMP CHAIN AND WILL SYNAPSE LATER NEAR OR INSIDE TARGET ORGAN
- 21. ABDOMINOPELVIC NERVES ARE PREGANGLIONIC SPLANCHNIC – PREGANG FIBRE LEAVES THE SYMPATHETIC CHAIN AND SYNAPSE OCCURS AT SOME CLOSER GANGLION FROM WHERE POST GANGLIONIC FIBRE CARRIES ON IN THE NERVE TO THE TARGET ORGAN DIFFERENT GANGLIA IN FRONT OF AORTA
- 23. THEIR ROOTS AND GANGLIA
- 24. ADRENAL GLAND IS A SPECIAL ORGAN THAT ISTELF ACT LIKE A GANGLION.IT IS INNERVATED BY PRE GANGLIONIC NEURON AND NEUROTRANSMITTER IS ACETYLCHOLINE
- 25. AFFERENT PART OF AUTONOMIC NS
- 31. THANK YOU