Question

The air from nasal cavity reaches the lungs through the _________.

• A. trachea
• B. diaphragm
• C. mouth
• D. nostril

Answer 1

The correct option is A trachea

• The Respiratory system starts from the nose that has two tiny openings called nostrils.
• The inhaled air enters into the nasal cavity through the nostrils.
• From the nasal cavity, air passes through the pharynx which is the common opening for both food and air.
• After that air travels through the trachea and finally enters into the lungs which is an important respiratory organ.