Lungs, Trachea And Bronchopulmonary Segments at University Of KwaZulu-Natal | Flashcards & Summaries

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Lernmaterialien für Lungs, trachea and bronchopulmonary segments an der University of KwaZulu-Natal

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What does each lung have?

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Each lung has an •Apex •Base •Two or three lobes •Three surfaces •Three borders 

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What are the lungs separated by?

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The lungs are separated by the mediastinum 

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What does each component of the lung do?

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•Apex ascends above the level of the 1st rib •Base - rests on the diaphragm •Lobes created by fissures

•Surfaces- Costal, Mediastinal, Diaphragmatic •Borders- Anterior, Inferior , Posterior

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Right lung vs left lung:

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Right lung 

Oblique & Horizontal Fissure Three Lobes: Superior, Middle, Inferior Anterior Border: Straight 


Left lung 

ONLY Oblique Fissure Two Lobes: Superior, Inferior Anterior Border: Has a Deep Cardiac Notch 

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What does the superior lobe of the left lung have?

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The superior lobe has a antero-inferior aspect that projects like a tongue from it’s border – that structure is called the LINGULA 

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What are the oblique and horizontal fissures related to?

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•Oblique fissure- related to the 6th costal cartilage anteriorly 

•Horizontal fissure- related to the 4th rib and costal cartilage anteriorly 

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Describe the lungs in living humans and cadavers.

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While the lungs are spongy and soft in living humans, cadaveric lungs may be firm and hard. Thus impressions from other viscera can be visualised on the surfaces of the lung. 

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Costal surface of the lungs:

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Costal surface- related to costal pleura that separates it from the ribs 

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Mediastinal surface of the lungs:

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Mediastinal surface- related to the middle mediastinum. It includes the hilum of the lungs. This surface in the embalmed cadaver has a number impressions e.g. descending aorta on the left lung 

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Diaphragmatic surface of the lung:

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Diaphragmatic surface- forms the base of the lung. 

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Lungs (Surface relations): 
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  • Costal surface - ribs and costal cartilages 
  • Mediastinal surface
  • Right: cardiac impression, oesophagus 
  • Left: cardiac impression, Arch of Aorta, Descending Aorta, oesophagus 
  • Diaphragmatic surface - Diaphragm 
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What are the functions of the lungs?

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The lungs are vital organs of respiration and they Oxygenate the blood 

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Q:

What does each lung have?

A:

Each lung has an •Apex •Base •Two or three lobes •Three surfaces •Three borders 

Q:

What are the lungs separated by?

A:

The lungs are separated by the mediastinum 

Q:

What does each component of the lung do?

A:

•Apex ascends above the level of the 1st rib •Base - rests on the diaphragm •Lobes created by fissures

•Surfaces- Costal, Mediastinal, Diaphragmatic •Borders- Anterior, Inferior , Posterior

Q:

Right lung vs left lung:

A:

Right lung 

Oblique & Horizontal Fissure Three Lobes: Superior, Middle, Inferior Anterior Border: Straight 


Left lung 

ONLY Oblique Fissure Two Lobes: Superior, Inferior Anterior Border: Has a Deep Cardiac Notch 

Q:

What does the superior lobe of the left lung have?

A:

The superior lobe has a antero-inferior aspect that projects like a tongue from it’s border – that structure is called the LINGULA 

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Q:

What are the oblique and horizontal fissures related to?

A:

•Oblique fissure- related to the 6th costal cartilage anteriorly 

•Horizontal fissure- related to the 4th rib and costal cartilage anteriorly 

Q:

Describe the lungs in living humans and cadavers.

A:

While the lungs are spongy and soft in living humans, cadaveric lungs may be firm and hard. Thus impressions from other viscera can be visualised on the surfaces of the lung. 

Q:

Costal surface of the lungs:

A:

Costal surface- related to costal pleura that separates it from the ribs 

Q:

Mediastinal surface of the lungs:

A:

Mediastinal surface- related to the middle mediastinum. It includes the hilum of the lungs. This surface in the embalmed cadaver has a number impressions e.g. descending aorta on the left lung 

Q:

Diaphragmatic surface of the lung:

A:

Diaphragmatic surface- forms the base of the lung. 

Q:
Lungs (Surface relations): 
A:
  • Costal surface - ribs and costal cartilages 
  • Mediastinal surface
  • Right: cardiac impression, oesophagus 
  • Left: cardiac impression, Arch of Aorta, Descending Aorta, oesophagus 
  • Diaphragmatic surface - Diaphragm 
Q:

What are the functions of the lungs?

A:

The lungs are vital organs of respiration and they Oxygenate the blood 

Lungs, trachea and bronchopulmonary segments

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