sympathetic trunk general Flashcards
what is the sympathetic trunk?
two paravertebral columns of interconnected ganglia.
does the sympathetic trunk carry descending and ascending fibers?
yes
where does the sympathetic trunk extend from superiorly?
superior cervical ganglion inferior to ganglion impar.
how many ganlia are in each trunk?
21-22 usually 3 cervical, 11 thoracic, 4 lumbar, and 4 sacral.
where is the trunk located in the cervical ares?
posterior to the carotid sheath
where is the trunk located in the upper thoracic area?
anterior to the necks of ribs
where is the trunk located in the lower thoracic and lumbar areas?
moves more medially, resting on the lateral aspect of the vertebral bodies.
where do the trunks lie in the sacral region and where do they join?
lies on the anterior aspect of the sacrum and they join at the coccyx.