LUNGS AND MECHANISMS OF
RESPIRATION
EXAM QUESTIONS WITH VERIFIED
CORRECT
ANSWERS | COMPREHENSIVE STUDY
GUIDE
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
What coordination allows for bolus passing without airway interference? -
CORRECT ANSWER>>>>Coordination between tracheal & esophageal muscles
How can bronchi and bronchioles be differentiated? - CORRECT
ANSWER>>>>Bronchi becomes less cartilage-like distally, and they become
bronchioles when no cartilage is present
What is the functional purpose of alveoli? - CORRECT ANSWER>>>>To
increase surface area for gas exchange
1
, Where do bronchial veins drain into? - CORRECT ANSWER>>>>Left drains
into the accessory hemiazygos vein; Right drains into the azygos vein
What are the diaphragmatic openings and their corresponding vertebral levels? -
CORRECT ANSWER>>>>T8: IVC opening
T10: Esophageal hiatus
T12: Aortic hiatus
How are the parietal and visceral pleura innervated? - CORRECT
ANSWER>>>>Parietal pleura is somatically innervated by phrenic and intercostal
nerves;
Visceral pleura is autonomically innervated
What makes a rib a true rib? - CORRECT ANSWER>>>>They are attached to the
sternum via direct cartilage (Ribs 1-7)
Which ribs are floating? - CORRECT ANSWER>>>>Ribs 11-12
What is the function and origin of sympathetic lung innervation? -
CORRECT ANSWER>>>>Bronchodilation from the sympathetic trunk via
the cardiopulmonary splanchnic nerves (T1-T4)
What is the function and origin of parasympathetic lung innervation? - CORRECT
ANSWER>>>>Bronchoconstriction from the vagus nerve (cranial nerve X)
Why is the costodiaphragmatic recess clinically significant? - CORRECT
2
RESPIRATION
EXAM QUESTIONS WITH VERIFIED
CORRECT
ANSWERS | COMPREHENSIVE STUDY
GUIDE
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
What coordination allows for bolus passing without airway interference? -
CORRECT ANSWER>>>>Coordination between tracheal & esophageal muscles
How can bronchi and bronchioles be differentiated? - CORRECT
ANSWER>>>>Bronchi becomes less cartilage-like distally, and they become
bronchioles when no cartilage is present
What is the functional purpose of alveoli? - CORRECT ANSWER>>>>To
increase surface area for gas exchange
1
, Where do bronchial veins drain into? - CORRECT ANSWER>>>>Left drains
into the accessory hemiazygos vein; Right drains into the azygos vein
What are the diaphragmatic openings and their corresponding vertebral levels? -
CORRECT ANSWER>>>>T8: IVC opening
T10: Esophageal hiatus
T12: Aortic hiatus
How are the parietal and visceral pleura innervated? - CORRECT
ANSWER>>>>Parietal pleura is somatically innervated by phrenic and intercostal
nerves;
Visceral pleura is autonomically innervated
What makes a rib a true rib? - CORRECT ANSWER>>>>They are attached to the
sternum via direct cartilage (Ribs 1-7)
Which ribs are floating? - CORRECT ANSWER>>>>Ribs 11-12
What is the function and origin of sympathetic lung innervation? -
CORRECT ANSWER>>>>Bronchodilation from the sympathetic trunk via
the cardiopulmonary splanchnic nerves (T1-T4)
What is the function and origin of parasympathetic lung innervation? - CORRECT
ANSWER>>>>Bronchoconstriction from the vagus nerve (cranial nerve X)
Why is the costodiaphragmatic recess clinically significant? - CORRECT
2
