Yes, that's correct! The respiratory system is essential for bringing oxygen into the body and expelling carbon dioxide. It consists of various structures, including:
- Nasal Cavity: Filters, warms, and humidifies the air we breathe.
- Pharynx: A passage that serves both the respiratory and digestive systems.
- Larynx: Also known as the voice box, it houses the vocal cords and is involved in producing sound.
- Trachea: The windpipe that conducts air to the lungs. It branches into two bronchi.
- Bronchi: The two main branches that lead into each lung, further dividing into smaller bronchi and bronchioles.
- Lungs: The main organs of respiration where gas exchange occurs. Inside the lungs are tiny air sacs called alveoli.
- Alveoli: The site of gas exchange, where oxygen is absorbed into the bloodstream and carbon dioxide is removed.
The respiratory system works in conjunction with the cardiovascular system to transport oxygen and nutrients to cells and remove waste products from metabolism. Breathing is regulated by the brainstem, which controls the rate and depth of breathing based on the body's oxygen and carbon dioxide levels.