69

Question 1

sympathetic nervous system overview as part of the peripheral nervous system

Answer 1

autonomic(involuntary) efferent(motor) part of the peripheral nervous system

cell bodies found in cornu laterale of spinal chord, in thoracic, lumbar and sacral parts only

Question 2

describe the 2-neural pathway of the autonomic nervous system

Answer 2

the “rules” of the autonomic nervous system
the cell bodies of lateral horn will go through a gangleon, synapsing ONCE: white myelinated pre- and grey non-myelinated post- ganglionic fibers

can go through a ggl withouth synapsing!

Question 3

what is the neurotransmitter of the sympathetic nervous system

Answer 3

norepinephrine - prod in adrenal medulla

Question 4

describe the course of a spinal nerve of the symp nervous system

Answer 4

funiculus lat -> ventral root -> for. intervert -> n. spinalis of thoracic and first few lumbar spinal nerves

Question 5

cervical parts and its ggl

Answer 5

ggl cerv cran is the most cranial symp ggl.(close to a. carotis interna) innervate head vessels and viscera

tr. vagosymp connect cran to ggl. cerv medii(eq: inconstant), and ansa subclavia connects it to the ggl. stellatum (cervicothoracic ggl)

Question 6

thoracic part and its ggl

Answer 6

from ggl stellatum the tr. symp continue under pleura, with paravertebral ganglia, it enters the abd cav through hiatus esophagus

Question 7

4 plexuses of ggl. stellatum

Answer 7

pl:

1. cardiacus
2. pulmonalis
3. aorticus thoracicus
4. esophagus

Question 8

lumbar and sacral part of sympathetic nervous system

Answer 8

lumbar part begins regular but grow irrecular further caudally

sacral part is more irregular than lumbar, and may fuse before entering the tail where it fades

Question 9

splanchnic nerves

Answer 9

in contrast to other spinal nerves, these will pass the paravertebral ggl w/o synapsing and entering the a asecond set of prevertebral ggl(celiac, mes cran/caud) where it synapses and continues to contributing to plexuses of abdomen

–> the sphlancnic nerves end in ggl. celiaca/mes cran/caud OR in the adrenal gland

Question 10

main symp plexuses of the symp nervous system in abdomen

Answer 10

lumbar plexus: ggl celiaca and ggl mes cran (ggl soleare)

pelvic plecus from ggl. mes caud throug n. hypogastricus which enter pelvic cavity under peritoneum