Human Lungs Anatomy

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Questions and Answers

What is the main function of the lungs?

  • To regulate body temperature
  • To filter out toxins from the blood
  • To pump blood throughout the body
  • To oxygenate the venous blood (correct)

Where are the lungs located in the body?

  • In the lateral part of the thoracic cavity (correct)
  • In the pelvic cavity
  • In the abdominal cavity
  • In the cranial cavity

What is the structure that is single on the left side and bifurcated on the right side?

  • Trachea
  • Pulmonary vein
  • Pulmonary artery
  • Bronchus (correct)

How many bronchial arteries arise from the thoracic aorta on the left side?

<p>2 (B)</p> Signup and view all the answers

What is the shape of the lung?

<p>Conical (C)</p> Signup and view all the answers

How many lobes does the right lung have?

<p>3 (A)</p> Signup and view all the answers

Where do the bronchial veins drain into on the right side?

<p>Azygos vein (C)</p> Signup and view all the answers

What is the function of the parasympathetic fibers in the pulmonary plexus?

<p>Bronchoconstriction and increase gland secretions (B)</p> Signup and view all the answers

What is the name of the depressed area on the medial surface of the lung?

<p>Hilum (B)</p> Signup and view all the answers

How many lobar bronchi does the right lung have?

<p>3 (D)</p> Signup and view all the answers

Which pulmonary vein is the most anterior structure in the hilum?

<p>Superior pulmonary vein (D)</p> Signup and view all the answers

What is the division of the trachea?

<p>Right and left main bronchi (A)</p> Signup and view all the answers

What is the shape of each broncho-pulmonary segment?

<p>Pyramidal (D)</p> Signup and view all the answers

How many segments does the right lung have?

<p>10 (A)</p> Signup and view all the answers

What is the advantage of each segment being surrounded by connective tissue?

<p>Easy removal of diseased segments (C)</p> Signup and view all the answers

Which of the following is NOT a segment of the upper lobe?

<p>Medial (B)</p> Signup and view all the answers

What is the number of segments in the middle lobe?

<p>2 (A)</p> Signup and view all the answers

Which of the following structures pass intersegmentally?

<p>Tributaries of the pulmonary vein (C)</p> Signup and view all the answers

Flashcards

Main function of the lungs?

To oxygenate venous blood.

Location of the Lungs

Located in the lateral part of the thoracic cavity.

Single Left, Bifurcated Right?

Bronchus.

Number of Left Bronchial Arteries

Two bronchial arteries.

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Shape of the Lung

Conical.

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Lobes in the Right Lung

Three.

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Right Bronchial Vein Drainage

Azygos vein.

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Pulmonary Plexus (Parasympathetic)

Bronchoconstriction and increased gland secretions.

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Depressed Lung Area

Hilum.

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Number of Right Lobar Bronchi

Three.

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Anterior Hilum Structure

Superior pulmonary vein.

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Trachea Division?

Right and left main bronchi.

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Broncho-pulmonary Segment Shape

Pyramidal.

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Segments in the Right Lung

Ten.

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Advantage of Segmental Connective Tissue

Easy removal of diseased segments.

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Not a segment of the upper lobe?

Medial.

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Segments in the Middle Lobe

Two

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Structures Passing Intersegmentally

Tributaries of the pulmonary vein

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