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47 Cards in this Set

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  • Back
what is the origin of the intercostal nerves? From which vertebrae do they stem?
VPR; T1-11
are the intercostals superior or inferior to the rib numbered the same as the spinal nerve from which they originate?
inferior
what are the sensory roles of the intercostal nerves?
skin of the chest wall including breast, costal parietal pleura, peripheral part of diaphragmatic pleura, proprioception from the peripheral part of the diaphragm
what is the motor role of the intercostal nerves?
muscles of the chest wall (external intercostal, internal intercostal, innermost intercostal, transversus thoracis)
which VPR give contributions to the phrenic nerve?
C3-5
does the phrenic nerve travel anteriorly or posteriorly to the root of the lung? On which aspect of the pericardium does it run?
anteriorly; lateral
what is the sensory role of the phrenic nerve?
fibrous and parietal serous pericardium, mediastinal pleura, central portion of the diaphragmatic pleura, proprioception from the central part of the diaphragm
which nerve provides sensory innervation from the peripheral part of the diaphargmatic pleura? From the central portion?
intercostal nerves; phrenic nerve
what is the motor role of the phrenic nerve?
diaphragm
the left vagus nerve travels around the _________ aspect of the ___________ and the _________ surface of the _________.
anterior; aortic arch; anterior; esophagus
the right vagus nerve travels on the __________ aspect of the _____________ and the _____________ surface of the ________________.
lateral; trachea; posterior; esophagus
do the vagus nerves pass anteriorly or posteriorly to the root of the lung?
posteriorly
what effect does the vagus nerve have on the heart?
decrease heart rate, constrict coronary arteries
what effect does the vagus nerve have on the bronchial tree?
constricts airways
what effect does the vagus nerve have on the esophagus?
stimulates peristalsis and increases secretion of mucous
the left recurrent laryngeal is a branch of which nerve?
left vagus nerve
does the left recurrent laryngeal travel anterior or posterior to the ligamentum arteriosum?
posterior
does the left recurrent laryngeal travel anterior or posterior to the aortic arch?
inferior
does the left recurrent laryngeal travel superiorly or inferiorly to the lateral aspect of the esophagus?
superiorly
which muscles are innervated by the left recurrent laryngeal?
muscles of the larynx
an aortic arch aneurism can compress which nerve and lead to hoarseness of the voice?
left recurrent laryngeal
are cardiac nerves pre- or post-ganglionic branches of the sympathetic chain?
post-ganglionic
preganglionic nerves that synapse with cardiac nerves come from which regions of the spinal cord?
T1-4
are cardiac nerves sympathetic or parasympathetic in nature?
sympathetic
what is the effect of the cardiac nerves on the esophagus?
it is unknown
Thoracic splanchnic nerves are branches of what?
the sympathetic chain
from which chain ganglia do the splanchnic nerves arise?
T5-12
what are the names for the 3 splanchnic nerves?
greater, lesser, least
what do the splanchnic nerves innervate in the thorax?
nothing
how do visceral afferent nerves travel?
in visceral plexuses or visceral nerves of the thorax
what is the sensory role of visceral afferent nerves?
sensation of pain from the viscera
to where is pain from the viscera normally referred?
the skin
which reflexes are accounted for by visceral afferent nerves?
cardiac and respiratory reflexes
what are the two types of plexuses found in the body?
visceral and somatic
somatic plexuses are formed from which nerves?
ventral rami of spinal nerves
how many somatic plexuses are present in the human body?
5
do visceral plexuses contain efferent or afferent visceral nerves?
both
where are visceral plexuses normally located?
around the organ being innervated or on the major blood vessels that supply the organ being innervated
what are the 3 visceral plexuses present in the thorax?
cardiac, pulmonary, and esophageal
which types of nerves do the visceral plexuses of the thorax contain?
sympathetics, parasympathetics, and visceral afferents
is the cardiac plexus found anrerior or posterior to the carina?
anterior
between which vessels it he cardiac plexus found?
aortic arch and pulmonary trunk
is the pulmonary plexus located anteriorly or posteriorly to the tracheal bifurcation and main bronchi?
both anteriorly and posteriorly
by which nerves is the esophageal plexus formed primarily?
left and right vagus nerves
does the left vagus nerve lie on the anterior or posterior surface of the esophagus? The right vagus?
anterior; posterior
near which anatomical structure do the nerves of the esophageal plexus converge to form vagal trunks?
near the diaphragm
do the anterior and posterior vagal trunks stop at the diaphragm?
no, they travel into the abdomen