Summary: Case 4: ''bigger Is Better?''
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Read the summary and the most important questions on CASE 4: ''Bigger is better?''
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1 Structure and function of the lungs
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Which lung has two lobes divided by one single fressure because of the extra space for the heart?
Left lung -
Which lung does not make extra room for the heart and has, therefore, three lobes and two fressures?
Rightlung -
What are the 3 structures that are necessary for breathing in the upper respiratory system?
- Nasal cavity
Pharynx - Larynx
- Nasal cavity
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What are the 4 structures that are necessary for breathing in the lower respiratory system?
- Trachea
- Bronchia
- Bronchioles
- Alveolies
- Trachea
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1.1 Pleura
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What is barrel chest?
Sign of hyperinflation, there is more air inside the thorax than normal. -
1.2 Human airways
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What is the conducting airways
Nasal cavity,nasopharynx , oropharynx,laryngopharynx , larynx, trachea, bronchi,bronchioles -
What is the respiratory/exchange airways
Respiratory bronchioles, alveolar ducts, alveoli -
1.3.1 Trachea
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Ciliated columnar cells (resp epi)
= long cilia = centrally located nuclei. Cilia transport mucus towards the pharynx. -
Mucous goblet cells (resp epi)
= basally located nucleus. The apical part of the cells is filled with mucus. -
Brush cells (resp epi)
= short cilia. These are sensory receptor cells. Very rare
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