Biology
Name the body structure concerned with the given functional activity:
(a) Prevents food from entering the trachea during swallowing.
(b) Transports oxygen to the body cells.
(c) Helps to increase the volume of the chest activity lengthwise.
(d) Combines with the oxygen in the lungs.
(e) Protects the lungs from mechanical injuries.
(f) Provides actual diffusion of respiratory gases in lungs.
Related Questions
Assertion (A): Asphyxiation is a condition in which the blood becomes more venous by the accumulation of more carbon monoxide as a result of which the oxygen supply is diminished.
Reason (R): Asphyxiation and hypoxia both are different with respect to the amounts of carbon dioxide and oxygen respectively.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
- Both A and R are False.
Name the following :
(a) The energy currency of the cell.
(b) The compound formed by the combination of oxygen and haemoglobin.
(c) The common passage of Oesophagus and Trachea.
(d) The muscles found between the ribs which can change the size of the chest cavity lengthwise.
(e) The compound formed by the combination of haemoglobin and carbon dioxide gas.
Name:
(a) Two kinds of respiration
(b) Two steps of cellular respiration
(c) Two phases of breathing
(d) Two main raw materials for respiration
(e) Two parts of tidal volume
Arrange the organs of the human respiratory system in a proper logical sequence:
Bronchi, Lungs, Larynx, Nose, Trachea, Pharynx.