Arteries And Veins Of The Thorax

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| Written by Clinical_anatomy

Clinical_anatomy

Community Contributor

Quizzes Created: 4 | Total Attempts: 2,043

Questions: 10 | Attempts: 753 | Updated: Mar 21, 2023

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After looking carefully at the 'Arteries and Veins' section of the website, see how much you can recall by testing yourself with the following 10 questions!

Questions and Answers

1.

From which artery does the internal thoracic artery originate?
- A.
  
  Subclavian artery
- B.
  
  Axillary artery
- C.
  
  Descending aorta
Correct Answer
A. Subclavian artery

Explanation
The internal thoracic artery originates from the subclavian artery.

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2.

The lateral thoracic artery runs along the medial side of the pectoralos minor muscle before reaching the lateral thoracic wall
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
It travels along the lateral side of the pectoralis minor muscle

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3.

The acromiothoracic typically has how many branches?
- A.
  
  2
- B.
  
  3
- C.
  
  4
- D.
  
  5
Correct Answer
C. 4

Explanation
The acromiothoracic nerve typically has four branches.

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4.

The cephalic vein originates in the median cubital fossa
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
It joins this, but originates in the dorsal venous network of the hand

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5.

The intercostal arteries supply the visceral pleura
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
They supply the parietal pleura, intercostal muscles and overlying skin

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6.

The intercostal veins lie more superiorly than the intercostal arteries and nerves in the intercostal space
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
Remember VAN ( Superior to Inferior)

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7.

The pulmonary arteries carry oxygenated blood
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
They carry deoxygenated blood from the right ventricle

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8.

The 3rd-11th left posterior intercostal arteries are longer than the right posterior intercostal arteries
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
The right are longer as they travel further to the descending aorta which lies to the left of the heart

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9.

In a typical case, how many pulmonary veins travel to each lung?
- A.
  
  1
- B.
  
  2
- C.
  
  3
- D.
  
  4
Correct Answer
B. 2

Explanation
In a typical case, there are two pulmonary veins that travel to each lung. The pulmonary veins are responsible for carrying oxygenated blood from the lungs back to the heart. Each lung receives blood from two pulmonary veins, one from the superior lobe and one from the inferior lobe. This allows for efficient oxygenation of the blood and transportation of oxygen to the rest of the body.

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10.

The descending aorta is a continuation of which vessel?
- A.
  
  Ascending aorta
- B.
  
  Arch of the aorta
- C.
  
  Right subclavian artery
Correct Answer
B. Arch of the aorta

Explanation
The descending aorta is a continuation of the arch of the aorta. After the ascending aorta and the arch of the aorta, the descending aorta begins and continues downward, supplying oxygenated blood to the rest of the body. The right subclavian artery is a branch of the aorta, but it does not directly connect to the descending aorta.

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Arteries And Veins Of The Thorax

From which artery does the internal thoracic artery originate?

The lateral thoracic artery runs along the medial side of the pectoralos minor muscle before reaching the lateral thoracic wall

The acromiothoracic typically has how many branches?

The cephalic vein originates in the median cubital fossa

The intercostal arteries supply the visceral pleura

The intercostal veins lie more superiorly than the intercostal arteries and nerves in the intercostal space

The pulmonary arteries carry oxygenated blood

The 3rd-11th left posterior intercostal arteries are longer than the right posterior intercostal arteries

In a typical case, how many pulmonary veins travel to each lung?

The descending aorta is a continuation of which vessel?