unit 7: sympathetics, distrib of preganglionics TO symp trunk

Question 1

preganglionic axons travel from the __-___ cord levels to enter the symp trunk, and may __ to higher levels or __ to lower levels of the trunk

Answer 1

T1-L2
ascend
descend

Question 2

in gen, fibers from __-__ levels will ascend and fibers from __-__ will descend

Answer 2

T1-T5

T5-L2

Question 3

axons that carry info to the HEAD & NECK are carried in the __ & __ nerves that will ascend to and synapse in the __ __ ganglion

Answer 3

T1 & T2

superior vervical

Question 4

axons influencing the HEART arise from __-__, mostly ascending to one of the three __ ganglia, or pass directly to the heart

Answer 4

T1-T4

cervical

Question 5

• axons influencing LUNGS leave cord at __-__ nerves

- these PREganglionic fibers synapse in the __-__ thoracic ganglia

Answer 5

T2-T4

2nd-4th

Question 6

PREganglionic fibers to the UE are carried in the __-__ nerves and after entering the symp trunk, will ascend & synapse to the __ cervical & __ cervical/stellate ganglia

Answer 6

T3-T7
middle
inferior

Question 7

fibers to ABDOMINAL VISCERA arise from __-__ levels and may synapse in lower thoracic ganglion or pass THRU the symp trunk, carried by the greater (mc), lesser, & least __ nerves

Answer 7

T5-T12

splanchnic

Question 8

fibers to PELVIC viscera arise from __-__ levels, and will __ to ganglia in lower thoracic, lumbar & pelvic areas

Answer 8

T10-L2

descend

Question 9

PREganglionics to the LE are carried in the __-__, and will descend in the __ trunk to synapse on the 2nd lumbar - 4th sacral ganglia

Answer 9

T10-L2

sympathetic