Question

From which organ does respiratory system of man begin ? *​

Answer 1

Answer:

Nose

Many organs take part in the process of respiration in Humans. Various organs are: Nose, Nasal passage or Nasal cavity, Trachea, Bronchi, Lungs and Diaphragm. Respiratory system begins from the nose. Our nose has two holes known as nostrils and the passage behind the nostrils are called nasal passage or nasal cavity.

Answer 2

Answer:

Nose

Explanation:

The respiration process start from nose and mouth and continues through the airways and the lungs. Air enters the respiratory system through the nose and mouth and passes down the throat (pharynx) and through the voice box, or larynx.