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Anatomy Exam 3 > Thoracic Cavity > Flashcards

Thoracic Cavity Flashcards

1
Q

The superior cavity is divided by what landmark?

A

T4-T5 and sternal angle

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2
Q

Superior mediastinum can be divided into ____(2) while the inferior mediastinum can be divided into ___(3)____

A

Retrosternal and prevertebral

Anterior, middle and posterior

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3
Q

Great vessels/branches and thymus are in what part of superior mediastinum?

A

Retrosternal

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4
Q

Prevertebral subdivision of superior mediastinum includes

A 
trachea
esophagus
thoracic duct
sympathetic trunks
vagus nerves
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5
Q

The anterior portion of the inferior mediastinum has contents including

A

thymus
fat
lymph nodes

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6
Q

The middle portion of the inferior mediastinum has contents including

A

pericardium
phrenic nerves
pericardiophrenic artery
heart and great vessels

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7
Q

The posterior portion of the inferior mediastinum has contents including

A 
esophagus
thoracic duct
aorta and branches
vagus nerves
sympathetic trunks
azygos system of veins
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8
Q

Thymus is vascularized by (2)

A

anterior mediastinal arteries from internal thoracic artery

inferior thyroid arteries from subclavian artery

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9
Q

Thymus is innervated by

A

Parasympathetically via vagus

Sympathetically via cardiac sympathetic plexus

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10
Q

The thymus venous drainage is

A

left brachiocephalic vein

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11
Q

What is ligaments of the pericardium?

A

Pericardiaphrenic ligament

Superior/inferior sternopercardial ligament

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12
Q

What is the blood supply of the pericardium?

A

pericardial arteries
pericardiacophrenic arteries
musculophrenic arteries

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13
Q

Nerve supply of the pericardium

A

CN X
Phrenic nerve
Sympathetic trunk

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14
Q

The esophagus starts at ____ located behind ___ then passes in front of the___then to the right of the ___ and finally passes through the diaphragm at ____ level

A 
base of the neck
trachea
vertebral column
thoracic aorta
T10
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15
Q

The esophagus is vascularized by

A

bronchial artery
thoracic aorta
left gastric artery
left inferior phrenic artery

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16
Q

The esophagus is innervated by

A

esophageal plexus

17
Q

The upper third of the esophagus is ____ and ____

A

voluntary and sympathetic

recurrent laryngeal nerve

18
Q

The lower two thirds is ____ and ____

A

Involuntary and paraympathetic

vagus and sympathetic chain

19
Q

Thoracic aorta direction

A

Continuation of aortic arch

Begins at lower border of t4 at sternal angle and ends at diaphragm along T12.

20
Q

Where does the azygos vein form?

A

below of the level of the diaphragm by union of right ascending lumber vein and right subcostal vein

21
Q

Azygos vein direction

A

ascends along RIGHT side of thoracic vertebral column

arches over root of right lung and enters superior vena cava

22
Q

The hemiazygos and accessory hemiazygos vein both stem from ____ and end at ____. But hemiazygos, travels on the ___ side of vertebral bodies and crosses at level___. The accessory hemiazygos runs on the ____ and ___ of vertebral bodies.

A 
diaphragm, piercing it
azygos vein
Left 
T9
Left and upper thoracic
23
Q

What are the five main lymph nodes?

A 
Parasternal nodes
Posterior intercostal nodes
diaphragmatic nodes
posterior mediastinal nodes
brachiocephalic nodes

(Please Pick Dr. Pepper Beta)

24
Q

Where does the parasternal node receive lymph?

A

thoracic wall
upper anterior abdominal wall
Diaphragm
Mammary Gland

25
Q

Where does the posterior intercostal node receive lymph?

A

thoracic wall

Paravertebral region

26
Q

Where does the diaphragmatic node receive lymph?

A

diaphragm
pericardium
upper surface of liver

27
Q

Left thoracic duct

A

receives fluid from body below diaphragm specifically from left internal jugular lymph trunk and left subclavian jugular lymph trunk
Drains left side of thoracic cavity and part of right

28
Q

Right thoracic duct

A

Drains upper right thoracic cavity, RUE and right side of head/neck

29
Q

The right vagus nerve passes ____

A

posteriorly to vagus trunk

30
Q

The left vagus nerve passes

A

anterior to vagus trunk

31
Q

What are the attachments of the respiratory diaphragm?

A

Ribs
TV 12
Distal end of sternum
Central Tendon

32
Q

Describe the central tendon and its relation to the crura and openings of the diaphragm

A

The central tendon is Y shaped, attaching to the lumbar vertebrae via crura while pulling the radiating fibers of the diaphragm together to form a dome-shaped muscle.

33
Q

The inferior vena cava pierces the diaphragm at what level and accompanied by what nerve?

A

T-8 or Caval foramen

with right phrenic nerve

34
Q

Diaphragm has two fascias called the

A

superior and inferior fascia

35
Q

The diaphragm originates @ ____ continuing to ___ and ends at _____

A

Xiphoid process
costal part
Lumbar vertebrae and crura

36
Q

The esophagus pierces the diaphragm at what level and accompanied by what nerve?

A

T-10 esophageal hiatus

With vagus nerve

37
Q

The aorta pierces the diaphragm at what level and accompanied by what nerve?

A

T-12 Aortic Hiatus

Greater splanchnic nerve

Anatomy Exam 3 (8 decks)

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