Question

The ultimate end parts of the respiratory system in humans are known as

Answer 1

The ultimate end part of the respiratory system is known as alveoli

Answer 2

The ultimate end parts of the respiratory system in humans are known as Alveoli.

Explanation:

• Alveoli are the main part of the gasping system which replaces the oxygen and $CO_2$ molecules in the blood.

• It is located at the very end of the respiratory system and desired the "same kind (clusters) throughout the lungs".

• One thick cell allows oxygen and $CO_2$ through the passage.

• There is a cell present in the alveoli that are pneumocytes which repairing damage to the lining and fluid layer.

• The main function of the system is to passing air into the two lungs and it is directed through smaller passage and enters the end of alveoli.  

Learn more about Alveoli

How are alveoli designed and why

https://brainly.in/question/4140913

Give reason- the wall of alveoli contains an extensive network of blood vessels

https://brainly.in/question/1278078