Thoracic Cavity Neuroanatomy and The Autonomic System Flashcards
(19 cards)
What types of neurons transmit impulses to the CNS?
sensory neurons
What types of neurons transmit impulses away from the CNS?
motor neurons
What types of neurons conduct impulses from sensory to motor neurons?
association neurons (interneurons)
The dorsal root is formed by _______ ________.
sensory neurons
The ventral root is formed by ______ ________.
motor neurons
Somatic motor neurons always innervate?
skeletal m
autonomic neurons always innervate?
smooth m, cardiac m, and glands
What is the motor nerve to the diaphragm?
phrenic n
When performing a pericardectomy what should one watch for?
phrenic n
When performing an incision in the ics what should one avoid?
caudal side of rib due to VAN running along there
What is the responses of the sympathetic nervous system?
flight, fight, fright
What is the responses of the parasympathetic nervous system?
rest and digest
Does parasympathetic or sympathetic go to the body wall?
only sympathetic reaches body wall, parasympathetic only supplies visceral structures
What is the parasympathetic innervation within the thorax?
vagus nerve
Which is longer the left or right vagus nerve?
left
Where do the Doral and ventral vagal trunks run through?
esophageal hiatus
What can occur if the lnn. is enlarged and presses on the esophagus and dorsal vagal nerve trunk?
this can lead to bloat and vagal indigestion
At the level of the larynx the left recurrent laryngeal nerve becomes?
caudal laryngeal n
Why is there more commonly damage to the left recurrent laryngeal n then the right one?
the left has close proximity to the aorta where it may be damaged by the pulsing artery, as well as close proximity to the thracheobronchial lnn and if enlarged it can cause nerve damage
