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TAP Lecture > Unit One Intercostal Spaces > Flashcards

Unit One Intercostal Spaces Flashcards

1
Q

Thoracic wall components of posterior aspect

A

Twelve thoracic vertebrae, intervertebral discs

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2
Q

Thoracic wall components of lateral aspect

A

Twelve ribs, three flat muscles (intercostal spaces), intercostal vein, artery and nerve

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3
Q

Thoracic wall components anterior aspect

A

Sternum

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4
Q

What are the muscles of the thoracic wall

A

External intercostal, internal intercostal, innermost intercostal, subcostales, transversus thoracis

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5
Q

Function of muscles of the thoracic wall

A

Help maintain space between ribs

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6
Q

External intercostal active during

A

Inspiration

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7
Q

Internal intercostal active during

A

Expiration

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8
Q

Innermost intercostal function

A

Help maintain space between ribs

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9
Q

Subcostales muscle is on the same plane as

A

Innermost intercostalis muscle

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10
Q

Subcostales muscle spans

A

Multiple ribs by skipping a rib

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11
Q

Function of subcostales muscle

A

Pull down on ribs

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12
Q

Subcostales muscle is located on

A

Posterior thoracic wall

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13
Q

Transversus thoracis muscle comes off of the

A

Sternum

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14
Q

Transversus thoracis muscle is on the same plane as

A

Innermost intercostals

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15
Q

Transversus thoracis muscle secures what

A

Internal thoracic vessels to the wall

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16
Q

actions of the intercostal muscles

A

Support intercostal spaces during breathing and pull ribs nearer to one another

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17
Q

What are the contents in the intercostal spaces

A

External intercostal, internal intercostal, innermost intercostal, subcostales, transversus thoracis and intercostal vein, artery, and nerve

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18
Q

What are the branches of the internal thoracic artery

A

Superior epigastric artery, musculophrenic artery, anterior intercostal arteries, pericardiophrenic artery, and mediastinal artery

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19
Q

The superior epigastric artery enters the

A

Rectus sheath

20
Q

The superior epigastric artery supplies the

A

Rectus muscles to umbilicus

21
Q

Musculophrenic artery supplies the

A

Diaphragm

22
Q

the musculophrenic artery is the origin for what arteries

A

Lower anterior intercostal arteries

23
Q

The anterior intercostal arteries connects with

A

Posterior intercostal arteries

24
Q

The pericardiophrenic artery accompanies the

A

Phrenic nerve

25
Q

The pericardiophrenic artery supplies what

A

Pericardium and diaphragm

26
Q

The mediastinal artery supplies the

A

Anterior mediastinum (thymus)

27
Q

The internal thoracic vein drains into the

A

Brachiocephalic vein

28
Q

The intercostal arteries divide into

A

Anterior and posterior

29
Q

What are the anterior intercostal arteries

A

Internal thoracic and musculophrenic artery

30
Q

The internal thoracic artery is the origin for what ribs

A

1-6

31
Q

The musculophrenic artery is the origin for what ribs

A

7 to 10

32
Q

What are the posterior intercostal arteries

A

Subclavian artery and thoracic artery

33
Q

What trunk comes off the subclavian artery for the posterior intercostal arteries

A

Costocervical trunk

34
Q

The subclavian artery is the origin for

A

Superior two posterior intercostal arteries

35
Q

The thoracic aorta is located where

A

Left side of vertebral column

36
Q

The thoracic aorta is the origin for

A

Lower 9 posterior intercostal arteries

37
Q

What comes off the costocervical trunk

A

First 2 intercostal arteries that run posteriorly

38
Q

What are the anterior intercostal veins

A

Musculophrenic vein and internal thoracic vein

39
Q

The anterior intercostal veins drain into

A

Brachiocephalic veins

40
Q

Do the anterior intercostal veins drain into brachiocephalic vein on both sides, or right or left

A

Both sides

41
Q

What are the posterior intercostal veins

A

Azygous, hemiazygous and left brachiocephalic vein

42
Q

Azygous drains to what side and where

A

Right side and superior vena cava

43
Q

The hemiazygous vein drains on what side and where

A

Left side and azygous vein

44
Q

What is the upper posterior intercostal vein on the left side

A

Left superior intercostal vein

45
Q

What is the middle posterior intercostal vein on the left side

A

Accessory hemiazygous vein

46
Q

What is the lower posterior intercostal vein on the left side

A

Hemiazygous vein

TAP Lecture (8 decks)

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