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Sectional Anatomy > Unit 1-Thorax-Part 2 > Flashcards

Unit 1-Thorax-Part 2 Flashcards

1
Q

What part of the atrium contributes to the sternocoastal surface of the heart?

A

The right atrium

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2
Q

What chamber of the heart is the most posterior?

A

The right atrium

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3
Q

Where does the right atrium get blood from?

A

The SVC and IVC, coronary sinus and cardiac veins

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4
Q

What drains the myocardium?

A

Coronary sinus and cardiac veins

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5
Q

What chamber rests on the diaphragm?

A

The ventricle

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6
Q

What comprises the largest portion of the anterior surface of the heart?

A

Right ventricle

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7
Q

What are the Right and Left ventricles are separated by?

A

Interventricular septum.

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8
Q

What does the pulmonary trunk arise from? Where does it ascend to?

A

Arises from the right ventricle and ascends anterior to the ascending aorta

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9
Q

T/F

As you move from superior to inferior in the chest, the first structure of the heart you will see is the left atrium

A

True

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10
Q

In which direction does the pulmonary trunk bend before it bifricates?

A

Bends to the left

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11
Q

At what level does the pulmonary trunk bifricate?

A

At level of the sternal angle

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12
Q

What does the pulmonary trunk bifricate into?

A

Pulmonary trunk bifurcates into the left and right pulmonary artery

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13
Q

T/F

The right pulmonary artery is longer than the left

A

True

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14
Q

T/F

Typically see the right pulmonary artery when we are inferior

A

True

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15
Q

T/F

The pulmonary arteries enter the hilum.

A

True

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16
Q

T/F

The carina is located at the same level as the pulmonary veins.

A

False; The carina is located at the same level as the pulmonary ARTERIES

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17
Q

What shape is the left hilum?

A

Triangular shaped

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18
Q

In the left hilum, what structure is most posterior?

A

Left Mainstem bronchus

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19
Q

In the left hilum, what structure is most superior?

A

Pulmonary artery

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20
Q

In the left hilum, what structure is most anterior?

A

Pulmonary vein

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21
Q

In the right hilum, what structure is most posterior?

A

Right mainstem bronchus

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22
Q

In the right hilum, what structure is most anterior?

A

Right superior pulmonary vein

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23
Q

In the right hilum, what structure is in the middle?

A

Right pulmonary artery

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24
Q

In the right hilum, what structure is most inferior?

A

Lower right pulmonary vein

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25
Q

T/F

Mainstem bronchus are always the most posterior compared to the veins and arteries located in the hilum.

A

True

26
Q

What is the largest artery of the body?

A

Aorta

27
Q

Where does the ascending aorta originate?

A

At the base of the left ventricle

28
Q

What are the 3 dialations located at the root of the ascending aorta termed?

A

Aortic sinuses (left, right & posterior)-cusps

29
Q

What artery does the right aortic sinus give rise to?

A

The right coronary artery

30
Q

What artery does the left aortic sinus give rise to?

A

The left coronary artery

31
Q

T/F

The Aorta sits to the right of the midline

A

True

32
Q

At what level is the top of the aortic arch located at?

A

T3

33
Q

T/F

Right pulmonary artery starts more to the left of the midline

A

True

34
Q

In which direction does the right pulmonary artery travel in relation to the esophagus?

A

Anterior to the esophagus

35
Q

In which direction does the right pulmonary artery travel in relation to the mainstem bronchus?

A

To the right of the mainstem bronchus and anterior

36
Q

T/F

The right pulmonary artery is shorter and smaller than the left

A

False; The LEFT pulmonary artery is shorter and smaller than the right

37
Q

T/F

Aorta passes over the pulmonary trunk

A

True

38
Q

What chamber of the heart is most posterior?

A

The left atrium

39
Q

What is the largest branch of the aortic arch?

A

Brachiocephalic (Innominate) Trunk

40
Q

What are the 3 branches that come off the aortic arch?

A
  1. Brachiocephalic (Innominate) Trunk
  2. Left Common Carotid Artery
  3. Left Subclavian Artery
41
Q

What does the Brachiocephalic (Innominate) Trunk branch into and at what level?

A

Bifurcates into Right Common Carotid & Right Subclavian arteries at the upper border of the right sternoclavicular joint

42
Q

T/F

The RCCA ascends the neck lateral to trachea.

A

True

43
Q

Where does the Left Common Carotid Artery arise from? Where does it ascend in relation to the trachea?

A

Arises just behind the left sternoclavicular joint
Ascends the neck, lateral (left of) trachea

44
Q

Where does the Left Subclavian Artery arise from?

A

Arises from the AA, posterior and lateral to the LCCA

45
Q

T/F

The vessels of the aortic arch sit in an oblique fashion

A

True

46
Q

What is the SVC formed by?

A

Formed by the union of the venous drainage of the upper extremity and the head (left and right brachiocephalic veins)

47
Q

Where is the SVC in relation to the midline?

A

To the right of the midline

48
Q

Which Brachiocephalic vein is longer?

A

Left is longer

49
Q

Where does the L brachiocephalic vein travel in relation to the midline and the aorta prior to the union of the right and left?

A

Left Brachiocephalic Vein courses across the midline, anterior to the branches of the aorta.

50
Q

Where does the right and left brachiocephalic vein become the SVC?

A

Posterior to the costal cartilage of the first rib to form the SVC.

51
Q

T/F

Aortic structures are posterior to venous structures

A

True

52
Q

What forms the brachiocephalic veins?

A

The union of the subclavian and the internal jugular vein

53
Q

T/F

Subclavian veins receive blood from the external jugular veins

A

True

54
Q

T/F

SVC recieves blood from head, neck and arms via the subclavian, exteral and internal jugular veins.

A

True

55
Q

T/F

Carotid arteries look much larger (dialted) than the jugular veins

A

False; Jugular veins look much larger (dialted) than the carotid arteries

56
Q

What is the azygos vein formed by?

A

Formed by the union of ascending lumbar veins and right subcostal veins.

57
Q

Where is the union of the azygos vein?

A

Union occurs between L2 – T12.

58
Q

Where is the hemiazygos vein located in relation to the aorta?

A

Located left of the aorta

59
Q

Where is the azygos vein located in relation to the aorta?

A

To the right of the aorta

60
Q

Where does the azygos vein drain into?

A

The SVC

Sectional Anatomy (19 decks)

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