The ANS pt 1 Flashcards
what are the effectors of the ANS?
smooth muscles, cardiac muscles, glands and adipose tissue
what autonomic division prepares for somatic action, neural and hormonal activity?
sympathetic
what autonomic division can be inhibitory or excitatory?
sypathetic
Where do the preganglionic neurons branch from in the sympathetic nervous system?
the lateral gray horns of CNS (T1-L2)
what are the three glanglionic neuron groups of the SNS?
Sympathetic chain ganglia, collateral ganglia and adrenal madullae
what innervates the head and thoracic organs via sypathetic nerve route?
sympathetic chain ganglia
what are generall excitatory and innervate periphereal structures and glands via spinal route?
sympathetic chain ganglia
what neuron group has preglangionic splanchnic nerves to collateral ganglion?
collateral ganglia
what neuron group has postganglionic fibers that go to adominopelvic organs and are generally inhibitory?
collateral ganglia
what neuron group has a very short postganglionic neurons and stimulates the release of epinephrin and noraepinephrine into the bloodstream?
adrenal medullae
what autonomic division specializes in visceral function and energy conservation, and has fewer effectors, but more specific targeting?
parasympathetic
what division has long preganglionic neurons from brain stem and sacral segments, and postganglionic neurons that terminate near or in target organs?
parasympathetic
what nerve is the most diverse and has both sensory and motor?
vagus nerve
what form or cholinergic receptors are excitory and incread the permeability to sodium
nicotinic receptors
what cholinergic receptors are g-protein mediated, active or inactivate specific enzymes, and have metabolic effects
muscurinic
