LUNGS & MECHANISMS OF RESPIRATION 2025 UPDATED QUESTIONS WITH ANSWERS

LUNGS & MECHANISMS OF
RESPIRATION 2025 UPDATED
QUESTIONS WITH ANSWERS
What are the components of the upper respiratory system? - CORRECT
ANSWER>>>>Nasal cavity, nasopharynx, and larynx

What are the components of the lower respiratory system? - CORRECT
ANSWER>>>>Trachea, bronchial tree, and lungs

What is the position of the lungs in the thoracic cavity relative to the intercostals? -
CORRECT ANSWER>>>>Lungs end around the 6th intercostal space and extend past
the first rib superiorly

Which lung has a horizontal fissure? - CORRECT ANSWER>>>>Right lung

Which lung has an inferior lobe? - CORRECT ANSWER>>>>Both lungs

Which lung has a middle lobe? - CORRECT ANSWER>>>>Right lung

Which lung has a lingula? - CORRECT ANSWER>>>>Left lung

What structures make up each hilum? - CORRECT ANSWER>>>>Mainstem bronchus,
pulmonary artery, superior & inferior pulmonary veins, hilar lymph nodes, and small
bronchial arteries

How can the left pulmonary artery be identified in the hilum? - CORRECT
ANSWER>>>>It is superior to the bronchus

What is the name of the tracheal bifurcation? - CORRECT ANSWER>>>>Carina

At what vertebral level does the trachea bifurcate? - CORRECT ANSWER>>>>T5

Which mainstem bronchus is the more probable location for inhaled foreign objects?
Why? - CORRECT ANSWER>>>>The right mainstem bronchus because it is shorter,
wider, and more vertical

How many bronchopulmonary segments are in each lung? - CORRECT
ANSWER>>>>10

Why are bronchopulmonary segments surgically important? - CORRECT
ANSWER>>>>Each individual segment can be resected because they have their own
neurovascular system, bronchus, and lymphatic drainage



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