Which is the correct sequence of air passage during inhalation?
(a) Nostrils → larynx → pharynx → trachea → lungs
(b) Nasal passage → trachea → pharynx → larynx → alveoli
(c) larynx → nostrils → pharynx → lungs
(d) Nostrils → pharynx → larynx → trachea → alveoli
NCERT Class X
Science - Exemplar Problems
Chapter_Life Processes
Answers
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Thank you for the question!
The correct option is D. The air enters through nostrils, passes to pharynx, larynx, trachea and then to alveoli. As soon as the air is inhaled the diaphragm and inter coastal muscles contract meanwhile, there is also the expansion of thoracic muscles which creates enough space for the air to enter into the lungs. The process is opposite in the case of exhalation.
Hope it helps.
The correct option is D. The air enters through nostrils, passes to pharynx, larynx, trachea and then to alveoli. As soon as the air is inhaled the diaphragm and inter coastal muscles contract meanwhile, there is also the expansion of thoracic muscles which creates enough space for the air to enter into the lungs. The process is opposite in the case of exhalation.
Hope it helps.
Answered by
12
Answer:
Nostrils, pharynx, larynx, trachea, alveoli.
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