Question

In 3-5 complete sentences describe the human respiratory system - the organs and their functions.

Answer 1

The human respiratory system consists of several key organs that work together to facilitate breathing and gas exchange. Air enters through the nose or mouth, passing through the pharynx and larynx before reaching the trachea, which divides into the bronchi that lead to the lungs. Inside the lungs, the bronchi branch into smaller bronchioles, culminating in tiny air sacs called alveoli, where oxygen is exchanged for carbon dioxide in the bloodstream. The diaphragm and intercostal muscles assist in ventilation by contracting and relaxing to change the pressure in the thoracic cavity, enabling inhalation and exhalation. Together, these components allow for the essential exchange of gases that supports cellular respiration and overall metabolism.