Breathing and Respiration (Respiratory Organs in Animals, Respiratory System in Humans,...) NEET Questions

Biology - Human Physiology

Breathing and Respiration (Respiratory Organs in Animals, Respiratory System in Humans,...) MCQ Questions


13.
The two lungs are covered by:
A.
Single layered pleura
B.
Double layered pleura with pleural fluid in between
C.
Peritoneum
D.
Pericardium
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ANSWER :
B. Double layered pleura with pleural fluid in between
14.
The function of pleural fluid is to:
A.
Help in gas exchange
B.
Reduce friction on lung surface
C.
Carry oxygen
D.
Produce mucus
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ANSWER :
B. Reduce friction on lung surface
15.
The conducting part of the respiratory system extends from:
A.
Alveolar duct to alveoli
B.
Bronchi to alveoli
C.
External nostrils to terminal bronchioles
D.
Trachea to alveolar sac
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ANSWER :
C. External nostrils to terminal bronchioles
16.
The respiratory or exchange part of respiratory system is formed by:
A.
Trachea and bronchi
B.
Bronchioles and terminal bronchioles
C.
Pharynx and larynx
D.
Alveoli and their ducts
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ANSWER :
D. Alveoli and their ducts
17.
Which of the following functions is NOT performed by the conducting part?
A.
Diffusion of O2 and CO2
B.
Transport of atmospheric air to alveoli
C.
Clearing air from foreign particles
D.
Humidification and bringing air to body temperature
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ANSWER :
A. Diffusion of O2 and CO2
18.
The thoracic chamber is formed dorsally by:
A.
Sternum
B.
Ribs
C.
Vertebral column
D.
Diaphragm
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ANSWER :
C. Vertebral column