PrepBharat

1. Each terminal bronchiole gives rise to a number of very thin, irregular walled and vascularized bag like structures called
a) Alveoli
b) Respiratory bronchioles
c) Pleura
d) Follicles

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2. Epiglottis is made up of
a) Fibrous cartilage
b) Hyaline cartilage
c) Elastic cartilage
d) Calcified cartilage

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3. Covering of the lungs is called
a) Perichondrium
b) Pleural membrane
c) Pericardium
d) Peritoneum

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4. Read the following statements:
A. It is double layered and covers the lungs.
B. Outer layer is in contact with thoracic wall.
C. Fluid is present between these layers.
D. Inner layer is in contact with the lungs.
The above features refer to
a) Pericardium
b) Peritoneum
c) Perichondrium
d) Pleura

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5.The part starting with the external nostrils up to the terminal bronchioles constitute the
a) Respiratory part of respiratory system
b) Exchange part of respiratory system
c) Expiratory part
d) Conducting part of respiratory system

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6. Respiratory or exchange part of the respiratory system consists of
a) All bronchi
b) All bronchioles
c) All bronchi and terminal bronchioles
d) Alveoli and their ducts

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7. Sites of gaseous exchange in lungs are
a) Alveoli
b) Bronchi
c) Bronchioles
d) Pleura

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8. Pleura is a double membrane sac which envelops
a) Kidneys
b) Brain
c) Lungs
d) Nasal passage

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9. Which of the following are functions of conducting part of the respiratory system?
a) Removal of foreign particles from incoming air.
b) Humidifies incoming air
c) Bring the temperature of incoming air to body temperature.
d) All the above

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10. ___________ is the site of actual diffusion of O₂ and CO₂ between blood and atmospheric air.
a) All bronchi
b) All bronchioles
c) All bronchi and terminal bronchioles
d) Alveoli and their ducts

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