EASY
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Fill in the blank with the correct answer from the bracket.

Trachea divide at the level of 5th thoracic vertebra into a right and left primary . (alveoli, bronchi, bronchioles)

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Important Questions on Breathing and Exchange of Gases

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The unpaired cartilages supporting the wall of larynx are      
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Which of the following is not the function of conducting part of respiratory system?
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Match the following
  List-I   List-II
(A) Moist body wall (I) Insects
(B) Tracheal system (II) Amphibian larvae
(C) Book lungs (III) Earthworms
(D) Gills (IV) Aves
    (V) Spiders

The correct match is
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If the number of alveoli in an individual is doubled without changing the total alveolar volume, the gas exchange capacity of the lungs will:
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A person suddenly starts coughing while swallowing food. This coughing would have been due to improper movement of
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Which is the correct sequence of the air passage in man?
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In jelly fishes, majority of gaseous exchange takes place through the ______.
MEDIUM

Read the following statements and identify the wrong ones among them:

(i) The oral cavity leads into a short larynx, which is a common opening for food and air.

(ii) A cartilaginous flap called “epiglottis” prevents the entry of food into the glottis.

(iii) The duct of the submaxillary gland is called the “Duct of Wirsung”.

(iv) Oesophagus leads into a J-shaped bag-like structure called “stomach”.

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Lungs have a large number of narrow tubes called:
MEDIUM
The pseudostratified columnar epithelium is found in
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A muscular transverse partition in mammals that separates thorax from the abdomen is called:
MEDIUM
Oxygen passes into the blood from the alveoli by a process called: