Unformatted text preview: AUTONOMIC
NERVOUS SYSTEM No direct voluntary control ANS deals with cardiac muscle, smooth muscle, and glandular activity Composed of two divisions, physiologically antagonistic to each other i SYMPATHETIC - speeds up_ body processes ?
L PARASYMPATHATIC - slows down body ?
SYMPATHETIC SYSTEM F Communicating Rami of T1 - T12, and L1 & L2 join with sympathetic
ganglion to form sympathetic trunk Also called T HORA COLUMBAR system Ganglia are near spinal column Short greganlionic ﬁbers Long 20stgangli0nic ﬁbers
PARASYMPATHETIC SYSTEM Origins from Cranial Nerves III, VII, IX and X , and Spinal nerves 82, S3, and S4
T Also called CRANIOSA CRAL System q _ Ganglia here are located on or near the organ affected Long greganglionic ﬁbers Short 20stgangli0nic ﬁbers
SYMPATHETIC E] INFLUENCE - E Accelerate heart rate Release adrenaline -, , Increase glycogen mobilization Dilate bronchi Dilate pupils Dilate peripheral blood vessels Slow down or stop digestion PARASYMPATHETIC
INFLUENCE A Slows heart rate Inhibits glycogen mobilization Constricts peripheral blood vessels Constricts bronchi Constricts pupil
E Aids or speeds up digestion and absorption of nutrients ...
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- Fall '07