Thorax 6: ANS and Lymphatic Drainage Flashcards

1
Q

Where are the preganglionic cell bodies found

A

IML

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2
Q

Where are the postganglionic cell bodies of GVE found

A

sympathetic chain or pre-aortic ganglia

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3
Q

Where are cell bodies of GVA found

A

DRG of T1-L2

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4
Q

What nerve will provide parasympathetic innervation to the thorax

A

vagus

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5
Q

What are the 2 divisions of the ANS

A

parasympathetic

sympathetic

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6
Q

What is the pathway for sympathetics to the body wall

A

start at IML (T1-L2)
involves every single spinal nerve, posterior ramus
anterior ramus
out ventral and dorsal rami

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7
Q

What is the pathway for sympathetics to the thoracic viscera above the diaphragm

A

start at IML

enter sympathetic chain and ascend, synapse, leave gray ramus and sympathetic chain, descend to level

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8
Q

Where will the cell bodies that sense pain from the heart be found

A

DRG of T1-4; GVA neurons

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9
Q

What is the pathway for sympathetics to viscera below diaphragm

A

IML enter sympathetic chain, descend and leave chain without synapsing
synapse with pre-aortic ganglia

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10
Q

What are the sympathetic nerves that go to viscera below the diaphragm

A

splanchnic nerves

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11
Q

Where do parasympathetic nerves come from

A

craniosacral regions

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12
Q

Where does the vagus nerve cell body originate

A

medulla oblongata

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13
Q

Where do the cell bodies or preganglionic vagal nerve found

A

dorsal vagal nucleus

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14
Q

Where are the cell bodies of postganglionic vagal nerve found

A

intramural ganglia

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15
Q

Where are the cell bodies of GVA of the vagus found

A

inferior ganglion of vagus

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16
Q

What cell bodies are found in the superior ganglion of the vagus

A

GSA

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17
Q

What provides sympathetics to the thorax

A

IML T1-T4

18
Q

What provides parasympathetics to the thorax

A

vagus n

19
Q

How is the heartbeat controlled

A

intrinsically controlled, modified by autonomics

20
Q

How will sympathetics influence the heart

A

dilate blood vessels
shunt blood to skeletal muscle
increase HR and strength of contraction

21
Q

How will parasympathetics influence the heart

A

slow the heart, constrict coronary vessels, not shunt blood to skeletal muscle

22
Q

What is the pain innervation to the lung

A

lung parenchyma and visceral pleura get no pain

23
Q

When will a lung tumor be detected

A

not until it gets to parietal viscera and body wall

24
Q

How will sympathetics affect the lung

A
bronchodilator
vasoconstriction
less mucous (inhibit bronchial glands)
25
Q

How will parasympathetics affect the lung

A

bronchoconstriction
vasodilator
more mucous

26
Q

What is the innervation to the esophagus

A

vagus nerve

27
Q

Where will pain from the heart refer to

A

T1-T4

chest and left upper extremity and shoulder

28
Q

What are other causes of chest pain besides heart

A

lung related
torn pectoral muscles
periosteum, costochondritis
neuralgia

29
Q

What will be the signs and symptoms of irritation and destruction to sympathetics in the thorax

A

irritation: sweating, increased HR/BP, bronchial dilation
destruction: decreased HR/BP, dry flush skin

30
Q

What are the signs and symptoms of irritation and destruction to parasympathetics in the thorax

A

irritation: decreased heart rate, coughing (increased mucous), bronchial constriction, nausea
destruction: increased heart rate, constipation

31
Q

What nerve is at risk during repair to the ductus arteriosum

A

left recurrent laryngeal nerve

32
Q

What are signs and symptoms of left recurrent laryngeal nerve damage

A

hoarseness as the vocal chord would be paralyzed

33
Q

What structures may be affected if there are enlarged mediastinal nodes

A

compress left recurrent laryngeal nerve, phrenic nerve, esophagus, SVC

34
Q

What lymph nodes drain the breast

A

axillary, parasternal, inferior phrenic

35
Q

Where will the lymph drainage from the skin between the clavicle and umbilicus converse

A

axillary nodes

36
Q

Lymphatic drainage of the pleura of the lung

A

visceral: with lung
Parietal: following body wall

37
Q

How will lymph from the esophagus drain

A

thoracic: deep cervical nodes, paratracheal nodes, posterior mediastinal
abdominal: celiac nodes

38
Q

Where will carinal nodes receive lymph from

A

right lung, left inferior lobe

39
Q

Where will carinal nodes drain

A

right side and to right jugulovenous angle

40
Q

Where will thoracic duct drain into

A

left jugulovenous angle