Question

which of the following is not a part of human respiratory system ? a) lungs b) oesophagus c)Tranchea d) diaphragm.​

Answer 1

Answer:

oesophagus

Explanation:

Oesophagus is a part of Digestive system. it is also called as food pipe as it transfers food from mouth to the stomach

Answer 2

Oesophagus is not a part of human respiratory system. (option b)

• The respiratory system of the human body, contains different biological components. This includes - lungs, trachea, diaphragm.
• Now, the oesophagus is not a part of the human body's respiratory system.
• Oesophagus is actually a part of the human body's digestive system. Oesophagus (a muscular tube) basically carries the swallowed food materials from the mouth to the stomach. This food carrying process is obviously a function of the digestive system, not the respiratory system.
• On the other hand - lungs, trachea, diaphragm have important functions to perform, which are solely related to the respiratory system.
• That's why, oesophagus is the correct answer to this question.