Human Respiratory System is composed of the airways (upper and lower), the lungs, and the blood vessels. The nose, paranasal sinus, and pharynx are the parts of the upper airways system while the lower airways system consists of the larynx, trachea, and stem bronchi. The lungs are soft spongy organs that function as the main site for the gaseous exchange. The major respiratory muscle, the diaphragm, and the intercostal muscles of the chest wall work together to push air into the lungs. The ... Describe the Human Respiratory System and Explain Rate of Breathing In human beings, many organs take part in the process of respiration. We call them organs of the respiratory system . The main organs of the human respiratory system are the Nose, Nasal passage (or Nasal cavity), Trachea, Bronchi, Lungs, and Diaphragm. The human respiratory system is shown in Figure. The human respiratory system begins from the nose. Our nose has two holes in it which are called nostrils. There is a passage ... One breath = 1 inhalation ... Learn about the human respiratory system , a complex network of organs and tissues that enables breathing and gas exchange. See a diagram of the respiratory system and test your knowledge with an interactive quiz.
