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
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