Lab 20: Autonomic nervous system Flashcards
For the most part, symoathetic and parasymaptheic fibers serve the same organs and structures. how can they exert the opposite effects
because their post ganglionic axons release different neurotransmitters
Name three structures that recieve sympathetic but not parasympathetic innervation
structures of skin, the adrenal medulla, all the blood vessels except those of the external genetalia
A pelvic splanchnic nerve contains
preganglionic parasympathetic fibers
Postganglionic fibers secrete norepinephrine, adrenergic fibers
sympathetic division
postganglionic fibers secrete acetylcholine, cholinergic fibers
parasympathetic division
long preganglionic axon, short postganglionic axon
parasympathetic division
short preganglionic axon, long postganglionic axon
sympathetic division
Arises from cranial and sacral nerves
parasympathetic divison
Arises from spinal nerves T1 through L3
sympathetic division
Normally in control
parasympathetic division
Fight of flight system
sympathetic divion
Has more specific control
parasympathetic division
Describe exactly how, from a physiological standpoint, EDA/GSR can be correlated with activity of the autonomic nervous system
the autonomic nervous system is integrated by emotions (stress, pain, feelings). These changes change heart rate, respiration, blood pressure and more autonomic changes occur in the skin. Allof these can be measured by GSR since the GSR is a measure of changes in the skin due to autonomic stimlation
Based on this breif and unprofessional exposure to a polygraph, explain why this might not be an exact tool for testing the sincerity and honestly of a subject
Its failure rate is far too high to provide true scientific of legal certainty . If it is based on skin and emotional changes, people feel different on different topics/subjects so it could give a false reading
