BIOL 251A&P EXAM 3 QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS (GRDED A+)

BIOL 251A&P EXAM 3 QUESTIONS
AND ANSWERS WITH COMPLETE
SOLUTIONS (GRDED A+)
sympathetic division of autonomic nervous system -ANSWER✔✔-Anatomical
traits for the sympathetic division include thoracolumbar origins
-Its innervation originates mainly in the thoracic segment of the spinal cord.
-the ganglia lay near the organ
-preganglionic fibers tend to be shorter


Parasympthetic division -ANSWER✔✔-Anatomical traits for the parasympathetic
division include craniosacral origins
-The preganglionic fibers and postganglionic fibers synapse in the ganglia, which
are located in the tissues of the target organs
-divergence 1:4 (number of postganglionic fibers a single preganglionic fibers
creates synapse with


Organization of Parasympathetic Division -ANSWER✔✔-long preganglionic
fibers
-ganglia with target tissue
-pelvic nerve
-vagus nerve


Organization of sympathetic division -ANSWER✔✔-preganglionic fibers synapse
in ganglia near spinal cord
-preganglionic fibers are short
-postganglionic fibers are long
-chain ganglia