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explain

Asked by Arushi Juyal 17th December 2017, 1:20 PM
Answered by Expert
Answer:
(i)Physicians typically diagnose asthma by looking for the classic symptoms: episodic problems with breathing that include wheezingcoughing, and shortness of breath but bronchitis is caused due to iunflammation in bronchi and bronchioles.
(ii)The part starting with the external nostrils up to the terminal bronchioles constitute the conducting part whereas the alveoli and their ducts form the respiratory or exchange part of the respiratory system.
(iii)Epiglottis covers the glottis during swallowing so as prevent the entrance of foodand drink into the wind pipe
(iv)Binding of oxygen with haemoglobin is primarily related to partial pressure of oxygen which help in the transport of oxygen in the blood.
 
So, (iii) and (iv) are correct.
Answered by Expert 17th December 2017, 5:31 PM
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