Question

How do respiration takes place in humans?

Answer 1

• Respiration is the process by which living organisms take in oxygen and release carbon dioxide. (0.5 marks)
• The human respiratory system works in conjunction with the circulatory system, supplies oxygen to the body's cells, removing carbon dioxide in the process. (0.5 marks)
• The exchange of these gases occurs across cell membranes both in the lungs (external respiration) and in the body tissues (internal respiration). (0.5 marks)
• Breathing or pulmonary ventilation, describes the process of inhaling and exhaling air. (0.5 marks)
• The human respiratory system consists of the respiratory tract and the lungs. (0.5 marks)
• The respiratory tract warms,cleans and moistens air during its trip to the lungs. Lungs is the major organ during the process of respiration. (0.5 marks)