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Write the function of Pleural fluid.

Important Questions on Respiration - The Energy Producing System

EASY
The lungs have millions of sac-like units for the exchange of respiratory gases called _____.
EASY

Fill in the blank with the option provided in the bracket.

The walls of the alveoli contain an extensive network of _____. (tubules/ cells/ capillaries)

EASY
In human beings, a pair of lungs is present in the _____.
EASY

The organs of respiration in man are the _____.

MEDIUM
Human lungs have about 300 _____ air sacs for the exchange of gases. (million/ lakhs/ crores)
EASY
Oxygen diffuses from air in the _____ into the capillaries in the lungs.(alveoli/bronchi)
EASY
The two nostrils are separated by a cartilaginous wall called _____. 
MEDIUM
The opening leading to the larynx is called _____. (glottis/epiglottis)
EASY
The double-layered membrane that encloses each lung is called _____. 
EASY
The actual exchange of gases takes place in the _____ of the lungs.
EASY
Reptiles, birds and _____ (fish, mammals, insects) have lungs for the exchange of gases.
MEDIUM

Fill in the blank with the options provided in the bracket.

When air passes through the nose, it is warmed, moistened and_____ (filtered, dusty, homogenous).

EASY

_____ in the lungs provide a very large surface area for gaseous exchange.

EASY
_____ is the muscular tube which connects the nasal cavity to the larynx.
MEDIUM

Fill in the blank with the options provided in the bracket.

From the larynx, air goes to_____ (pharynx, bronchi, trachea).

EASY
The tiny hair-like structures present in the nostril are called _____.(Cilia/Flagellum/Fibres)
MEDIUM

Write the correlated terms.

Larynx : Vocal cords :: Bronchioles : _____. (nephron/neuron/alveoli/hepatic lobes)

EASY
Rings of _____ present in trachea, bronchi and bronchioles prevent their collapse when air is not passing through them.