Anatomy - Major Nerves Of The Thorax

Front 1

what is the origin of the intercostal nerves? From which vertebrae do they stem?

Back 1

VPR; T1-11

Front 2

are the intercostals superior or inferior to the rib numbered the same as the spinal nerve from which they originate?

Back 2

inferior

Front 3

what are the sensory roles of the intercostal nerves?

Back 3

skin of the chest wall including breast, costal parietal pleura, peripheral part of diaphragmatic pleura, proprioception from the peripheral part of the diaphragm

Front 4

what is the motor role of the intercostal nerves?

Back 4

muscles of the chest wall (external intercostal, internal intercostal, innermost intercostal, transversus thoracis)

Front 5

which VPR give contributions to the phrenic nerve?

Back 5

C3-5

Front 6

does the phrenic nerve travel anteriorly or posteriorly to the root of the lung? On which aspect of the pericardium does it run?

Back 6

anteriorly; lateral

Front 7

what is the sensory role of the phrenic nerve?

Back 7

fibrous and parietal serous pericardium, mediastinal pleura, central portion of the diaphragmatic pleura, proprioception from the central part of the diaphragm

Front 8

which nerve provides sensory innervation from the peripheral part of the diaphargmatic pleura? From the central portion?

Back 8

intercostal nerves; phrenic nerve

Front 9

what is the motor role of the phrenic nerve?

Back 9

diaphragm

Front 10

the left vagus nerve travels around the _________ aspect of the ___________ and the _________ surface of the _________.

Back 10

anterior; aortic arch; anterior; esophagus

Front 11

the right vagus nerve travels on the __________ aspect of the _____________ and the _____________ surface of the ________________.

Back 11

lateral; trachea; posterior; esophagus

Front 12

do the vagus nerves pass anteriorly or posteriorly to the root of the lung?

Back 12

posteriorly

Front 13

what effect does the vagus nerve have on the heart?

Back 13

decrease heart rate, constrict coronary arteries

Front 14

what effect does the vagus nerve have on the bronchial tree?

Back 14

constricts airways

Front 15

what effect does the vagus nerve have on the esophagus?

Back 15

stimulates peristalsis and increases secretion of mucous

Front 16

the left recurrent laryngeal is a branch of which nerve?

Back 16

left vagus nerve

Front 17

does the left recurrent laryngeal travel anterior or posterior to the ligamentum arteriosum?

Back 17

posterior

Front 18

does the left recurrent laryngeal travel anterior or posterior to the aortic arch?

Back 18

inferior

Front 19

does the left recurrent laryngeal travel superiorly or inferiorly to the lateral aspect of the esophagus?

Back 19

superiorly

Front 20

which muscles are innervated by the left recurrent laryngeal?

Back 20

muscles of the larynx

Front 21

an aortic arch aneurism can compress which nerve and lead to hoarseness of the voice?

Back 21

left recurrent laryngeal

Front 22

are cardiac nerves pre- or post-ganglionic branches of the sympathetic chain?

Back 22

post-ganglionic

Front 23

preganglionic nerves that synapse with cardiac nerves come from which regions of the spinal cord?

Back 23

T1-4

Front 24

are cardiac nerves sympathetic or parasympathetic in nature?

Back 24

sympathetic

Front 25

what is the effect of the cardiac nerves on the esophagus?

Back 25

it is unknown

Front 26

Thoracic splanchnic nerves are branches of what?

Back 26

the sympathetic chain

Front 27

from which chain ganglia do the splanchnic nerves arise?

Back 27

T5-12

Front 28

what are the names for the 3 splanchnic nerves?

Back 28

greater, lesser, least

Front 29

what do the splanchnic nerves innervate in the thorax?

Back 29

nothing

Front 30

how do visceral afferent nerves travel?

Back 30

in visceral plexuses or visceral nerves of the thorax

Front 31

what is the sensory role of visceral afferent nerves?

Back 31

sensation of pain from the viscera

Front 32

to where is pain from the viscera normally referred?

Back 32

the skin

Front 33

which reflexes are accounted for by visceral afferent nerves?

Back 33

cardiac and respiratory reflexes

Front 34

what are the two types of plexuses found in the body?

Back 34

visceral and somatic

Front 35

somatic plexuses are formed from which nerves?

Back 35

ventral rami of spinal nerves

Front 36

how many somatic plexuses are present in the human body?

Back 36

5

Front 37

do visceral plexuses contain efferent or afferent visceral nerves?

Back 37

both

Front 38

where are visceral plexuses normally located?

Back 38

around the organ being innervated or on the major blood vessels that supply the organ being innervated

Front 39

what are the 3 visceral plexuses present in the thorax?

Back 39

cardiac, pulmonary, and esophageal

Front 40

which types of nerves do the visceral plexuses of the thorax contain?

Back 40

sympathetics, parasympathetics, and visceral afferents

Front 41

is the cardiac plexus found anrerior or posterior to the carina?

Back 41

anterior

Front 42

between which vessels it he cardiac plexus found?

Back 42

aortic arch and pulmonary trunk

Front 43

is the pulmonary plexus located anteriorly or posteriorly to the tracheal bifurcation and main bronchi?

Back 43

both anteriorly and posteriorly

Front 44

by which nerves is the esophageal plexus formed primarily?

Back 44

left and right vagus nerves

Front 45

does the left vagus nerve lie on the anterior or posterior surface of the esophagus? The right vagus?

Back 45

anterior; posterior

Front 46

near which anatomical structure do the nerves of the esophageal plexus converge to form vagal trunks?

Back 46

near the diaphragm

Front 47

do the anterior and posterior vagal trunks stop at the diaphragm?

Back 47

no, they travel into the abdomen