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MED215 > Lecture1: Thoracic Wall > Flashcards

Lecture1: Thoracic Wall Flashcards

1
Q

What is the upper opening of the thoracic cage called?

A

Thoracic inlet

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2
Q

What are True ribs?

A

The Upper Seven Ribs

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3
Q

What are False Ribs?

A

Lower Five ribs

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4
Q

What are Floating Ribs?

A

The lowest two ribs

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5
Q

Why are the lowest two ribs called Floating ribs?

A

They are free anteriorly

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6
Q

What are the Typical ribs?

A

From 3rd to 9th

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7
Q

What are Atypical ribs?

A

The First 2 and Last 3 ribs

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8
Q

What is the Cervical Rib?

A

An accessory rib articulating from the 7th cervical vertebrae and attaching to the 1st

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9
Q

What is Thoracic Outlet syndrome?

A

Symptoms of abnormal compression of the brachial plexus of nerves as it passes through the 1st rib

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10
Q

What can be obtained from the Medullary cavity of the sternum via injection?

A

Bone marrow

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11
Q

What does the Bone marrow collection help in diagnosis of?

A

Leukemia

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12
Q

The Subcostalis are in the same plane as?

A

The innermost intercostals

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13
Q

What are all intercostal muscles innervated by?

A

The intercostal nerves

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14
Q

What do all Thoracic wall muscles do, bar the external intercostals?

A

They depress the ribs

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15
Q

What do the External Intercostals do?

A

They elevate the ribs

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16
Q

How many anterior arteries does each intercostal space contain?

A

2

17
Q

What do the Upper 6 anterior artery pairs arise from?

A

The mammary artery
(Internal Thoracic)

18
Q

What do the lower 3 pairs of anterior arteries arise from?

A

The musculophrenic artery

19
Q

What branch does each posterior artery give?

A

Collateral

20
Q

Where do the upper 2 posterior arteries arise from?

A

Subclavian artery

21
Q

What do the 3rd through 11th posterior arteries arise from?

A

The descending thoracic aorta

22
Q

What is the origin of the superior intercostal artery?

A

The subclavian artery

23
Q

The Anterior veins drain into the venae commitants of which 2 arteries?

A

The musculophrenic and mammary arteries

24
Q

What do the upper posterior intercostal veins unite to form?

A

The Azygos vein

25
Q

In the left side, the upper posterior intercostal veins form?

A

The Left innominate vein

26
Q

In the left side, the rest of the posterior intercostal veins form the?

A

Hemiazygos vein

27
Q

What is the arrangement of intercostal nerves and vessels in the costal groove?

A

VAN

28
Q

In which part of the intercostal spaces do stab wounds lead to injury?

A

Posterior part

29
Q

Why do stab wounds not injure in the lateral part?

A

Costal groove provides protection

30
Q

Where are needles introduced in the intercostal spaces?

A

The lateral part

MED215 (20 decks)

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