Question

Read the following four statement carefully.
(i) Ventral respiratory group of neurons of medulla oblongata can cause both inspiration and expiration.
The part of the respiratory and expiration.
(ii) The part of the respiratory system starting with the external the respiratory or exchange part of the respiratory system.
(iii) During swallowing epiglottis can be covered by a thin elastic cartilaginous flap called glottis to prevent the entry of food into the larynx.
(iv) Binding of oxygen with haemoglobin in primarily related of oxygen with haemoglobin is primarily related to partial prssure of `O_(2)`.
Which of the above two statement are correct ?
A. `(ii)` and `(iii)`
B. `(iii)` and `(iv)`
C. `(i)` and `(ii)`
D. `(i)` and `(iv)`

Answer 1

Correct Answer - D
The part of respiratory system starting with the external nostrills up to the terminal brounchioles constitutes the conducting part whereas the alveoli and their ducts from the respiratory or exchange part. During swallowing, glottis can be covered by a thin elastic cartilaginous flap called epiglottis to prevent the entry of food in to the larynx.