Thorax 6: ANS and Lymphatic Drainage Flashcards
Where are the preganglionic cell bodies found
IML
Where are the postganglionic cell bodies of GVE found
sympathetic chain or pre-aortic ganglia
Where are cell bodies of GVA found
DRG of T1-L2
What nerve will provide parasympathetic innervation to the thorax
vagus
What are the 2 divisions of the ANS
parasympathetic
sympathetic
What is the pathway for sympathetics to the body wall
start at IML (T1-L2)
involves every single spinal nerve, posterior ramus
anterior ramus
out ventral and dorsal rami
What is the pathway for sympathetics to the thoracic viscera above the diaphragm
start at IML
enter sympathetic chain and ascend, synapse, leave gray ramus and sympathetic chain, descend to level
Where will the cell bodies that sense pain from the heart be found
DRG of T1-4; GVA neurons
What is the pathway for sympathetics to viscera below diaphragm
IML enter sympathetic chain, descend and leave chain without synapsing
synapse with pre-aortic ganglia
What are the sympathetic nerves that go to viscera below the diaphragm
splanchnic nerves
Where do parasympathetic nerves come from
craniosacral regions
Where does the vagus nerve cell body originate
medulla oblongata
Where do the cell bodies or preganglionic vagal nerve found
dorsal vagal nucleus
Where are the cell bodies of postganglionic vagal nerve found
intramural ganglia
Where are the cell bodies of GVA of the vagus found
inferior ganglion of vagus
What cell bodies are found in the superior ganglion of the vagus
GSA
What provides sympathetics to the thorax
IML T1-T4
What provides parasympathetics to the thorax
vagus n
How is the heartbeat controlled
intrinsically controlled, modified by autonomics
How will sympathetics influence the heart
dilate blood vessels
shunt blood to skeletal muscle
increase HR and strength of contraction
How will parasympathetics influence the heart
slow the heart, constrict coronary vessels, not shunt blood to skeletal muscle
What is the pain innervation to the lung
lung parenchyma and visceral pleura get no pain
When will a lung tumor be detected
not until it gets to parietal viscera and body wall
How will sympathetics affect the lung
bronchodilator vasoconstriction less mucous (inhibit bronchial glands)
How will parasympathetics affect the lung
bronchoconstriction
vasodilator
more mucous
What is the innervation to the esophagus
vagus nerve
Where will pain from the heart refer to
T1-T4
chest and left upper extremity and shoulder
What are other causes of chest pain besides heart
lung related
torn pectoral muscles
periosteum, costochondritis
neuralgia
What will be the signs and symptoms of irritation and destruction to sympathetics in the thorax
irritation: sweating, increased HR/BP, bronchial dilation
destruction: decreased HR/BP, dry flush skin
What are the signs and symptoms of irritation and destruction to parasympathetics in the thorax
irritation: decreased heart rate, coughing (increased mucous), bronchial constriction, nausea
destruction: increased heart rate, constipation
What nerve is at risk during repair to the ductus arteriosum
left recurrent laryngeal nerve
What are signs and symptoms of left recurrent laryngeal nerve damage
hoarseness as the vocal chord would be paralyzed
What structures may be affected if there are enlarged mediastinal nodes
compress left recurrent laryngeal nerve, phrenic nerve, esophagus, SVC
What lymph nodes drain the breast
axillary, parasternal, inferior phrenic
Where will the lymph drainage from the skin between the clavicle and umbilicus converse
axillary nodes
Lymphatic drainage of the pleura of the lung
visceral: with lung
Parietal: following body wall
How will lymph from the esophagus drain
thoracic: deep cervical nodes, paratracheal nodes, posterior mediastinal
abdominal: celiac nodes
Where will carinal nodes receive lymph from
right lung, left inferior lobe
Where will carinal nodes drain
right side and to right jugulovenous angle
Where will thoracic duct drain into
left jugulovenous angle
