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Answered

General Knowledge
Matching
Match each of the items in the left column to the appropriate definition in the right column.
1. Inhalation
2. Exhalation
3. Alveoli
4. Mediastinum
5. Hypoxic drive
6. Tidal volume
7. Diaphragm
8. Intercostal muscle
9. Ventilation
10. Larynx
11. Hypoxia
12. Cheyne-Stokes
A. Moves downward with contraction
B. An irregular breathing pattern with increased rate and depth fol-
lowed by apnea
c. An active part of breathing
D. A complex structure made of cartilage, marking where the upper air-
way ends and the lower airway begins
E. The amount of air moved during one breath
F. Raises ribs when it contracts
G. The space between the lungs that contains the heart, great vessels,
trachea, main bronchi, esophagus, and many nerves
H. The functional site of oxygen and carbon dioxide exchange
1. A passive process not requiring muscular effort
J. Insufficient oxygen for cells and tissues
K. A secondary system for control of breathing
L. The exchange of air between lungs and the environment



Answer :

GinnyAnswer

Final answer:

Inhalation and exhalation are key processes in breathing involving the diaphragm and intercostal muscles. Alveoli facilitate gas exchange in the respiratory system.


Explanation:

Inhalation is an active process that mainly involves the contraction of the diaphragm and the external intercostal muscles. During inhalation, the thoracic volume increases, causing air pressure inside the lungs to decrease, leading to air entering the respiratory system.

Exhalation, on the other hand, is typically a passive process driven by the elasticity of the lungs as the diaphragm relaxes, resulting in air being pushed out of the lungs. The thoracic cavity expansion and the lowered air pressure inside the lungs are key mechanisms in the inhalation and exhalation processes.

The alveoli play a vital role in the respiratory system as the sites where oxygen and carbon dioxide exchange occurs. They are essential for efficient gas exchange during the ventilation process.


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