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14 Cards in this Set

  • Front
  • Back
sympathetic division -- preganglionic neurons
gray matter, between t1 and L2
sympathetic division -- Ganglia - sympathetic ganglia
para - chain, paired, each side
pre -- collateral, not paired
sympathetic division -- Ganglia - adrenal medulla
norep and ep
sympathetic division -- Effector Organs
post para - body wall/thoracic
post pre - abdonimal and pelvic
parasympathetic division -- preganglionic neurons
located in brain stem and sacral segments...VAGUS nerve (75%)
parasympathetic division -- ganglionic neurons
cell bodies located close to or within effect organs
parasympathetic division -- effector organs
head and face - cranial nerves
thoracic cavity - vagus nerve
pelvic cavity - pelvic
neurotransmitters and receptors -- neurotransmitter
two types: 1) ionotropic - forms ion channel (nicotinic)
2) metabotropic - coupled with G protein, activated second messenger (3 subunits)
neurotransmitters and receptors -- cholinergic receptors
1) nicotinic receptor = ionotropic receptor, fast, binding of Ach increase Na perm.
2) muscarinic = metabotropic, used at junction in parasymp, increases cAMP levels, opens K channels, slow
neurotransmitters and receptors -- andrenergic receptors
used at neuroeffector junction of sympathetic
a andrenergic - a1, a2
b andrenergic - b1, b2
Control of ANS
dual innervation -- usually oppose each other but blood vessels do not have dual innervation
stretch reflex vs tendon reflex
monosynaptic vs polysynaptic
autonomic reflext
polysynaptic --- regulation of blood pressure for example
higher levels of autonomic control
brain stem and hypothalamus