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Study Guides > Thoracic and Abdominal Wall > Flashcards

Thoracic and Abdominal Wall Flashcards

0
Q

What is the anterior border of the superior thoracic apeture?

A

Superior border of sternum

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1
Q

What is the posterior boundary of the superior thoracic apeture?

A

T1 vertebra

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2
Q

What are the lateral borders of the superior thoracic apeture?

A

First ribs and their costal cartilages

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3
Q

What is the posterior border of inferior thoracic apeture?

A

T12 vertebra

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4
Q

What is the anterior border of the inferior thoracic apeture?

A

Xiphisternal joint

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5
Q

What are the posterolateral borders of the inferior thoracic apeture?

A

11th and 12th ribs

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6
Q

What are the anterolateral borders of the inferior thoracic apeture?

A

Costal cartilages of 7th-10th ribs

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7
Q

What structure separates the thoracic and abdominal cavities?

A

Diaphragm

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8
Q

What are the typical contents of the intercostal space?

A

Intercostal vein, artery, and nerve

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9
Q

What does the T4 region usually indicate?

A

Nipples

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10
Q

What does the T6 region usually indicate?

A

Xiphoid process

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11
Q

What does the T10 usually indicate?

A

Umbilicus

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12
Q

What arteries supply the thorax?

A

Posterior intercostals, anterior intercostals, and internal thoracic

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13
Q

What is the origin of the posterior intercostal artery?

A

Supreme intercostal arteries (intercostal spaces 1 and 2) and thoracic aorta (remaining intercostal spaces)

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14
Q

What is the course of the posterior intercostal artery?

A

Pass between internal and innermost intercostal muscles

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15
Q

What is the distribution of the posterior intercostal artery?

A

Intercostal muscles and overlying skin, along with parietal pleura

16
Q

What is the origin of anterior intercostal artery?

A

Internal thoracic arteries (intercostal spaces 1-6) and musculophrenic arteries (intercostal spaces 7-9

17
Q

What is the course of the anterior intercostal artery?

A

Pass between internal and innermost intercostal muscles

18
Q

What is the distribution of the anterior intercostal artery?

A

Intercostal muscles and overlying skin, along with parietal pleura

19
Q

What is the origin of the internal thoracic artery?

A

Subclavian artery

20
Q

What is the course of the internal thoracic artery?

A

Passes inferiorly, lateral to sternum, between costal cartilages and internal intercostal muscles to divide into superior epigastric and inferior epigastric and musulophrenic arteries

21
Q

What is the distribution of internal thoracic artery?

A

By way of anterior intercostal arteries to intercostal spaces 1-6 and musculophrenic arteries to intercostal spaces 7-9

22
Q

What arteries supply the anterolateral abdominal wall?

A

Musculophrenic artery, superior epigastric artery, inferior epigastric artery

23
Q

What is the origin of the musculophrenic artery?

A

Internal thoracic artery

24
Q

What is the course of the musculophrenic artery?

A

Descends along costal margin

25
Q

What is the distribution of the musculophrenic artery?

A

Abdominal wall of hypochondriac region, anterolateral, diaphragm

26
Q

What is the origin of the superior epigastric artery?

A

Internal thoracic artery

27
Q

What is the course superior epigastric artery?

A

Descends in rectus sheath deep to rectus abdominis

28
Q

What is the distribution of the superior epigastric artery?

A

Superior rectus abdominis and superior part of anterolateral abdominal wall

29
Q

What is the origin of the inferior epigastric artery?

A

External iliac artery

30
Q

What is the course of the inferior epigastric artery?

A

Runs superiorly and enters rectus sheath; runs deep to rectus abdominis

31
Q

What is the distribution of the inferior epigastric artery?

A

Inferior rectus abdominis and medial anterolateral abdominal wall

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