Question

The passage of air to the lungs is provided by
А. Trachea
B. Larynx
C. Bronchi
D. Pharynx

Answer 1

The human respiratory system consists of the nose, nasal cavity, pharynx, larynx, trachea, bronchi, and lungs. Each and every part has a vital role.

Complete answer:
As we breathe in the air it passes through the nasal cavity after the dust is filtered in the nose. Then the air moves from the nasal cavity to the pharynx, which is the junction between the oesophagus and larynx.
After the air reaches the larynx it further moves to the trachea (windpipe) and through the bronchi (branches from the trachea) it reaches the lungs.
So, the correct answer to the question is option C.
Additional information:
Most aquatic animals and fishes have gills for the exchange of gases. Water passes through the gills where oxygen gets filtered and absorbed into the body. Insects use spiracles (small holes in their body) for the exchange of gases. And amphibians can even breathe through their skins. Plants use both stomata and lenticels for the exchange of gases. Stomata are present in all leaves (mostly on their lower surface). Lenticels are present in the stem and roots.

Note: The air passes from the bronchus (plural: bronchi) to the lungs. The main right bronchus is shorter and the main left bronchus is larger. The bronchus further divides into bronchioles inside the lungs. At the end of every bronchiole, there are alveoli. Alveoli are tiny air sacs where the exchange of gases takes place. This exchange of gases takes place with the process of diffusion.