Aquatic respiratory systems primarily function through gills, which extract dissolved oxygen from water. Water enters the mouth, flows over the gill membranes, and exits through openings, allowing oxygen to diffuse into the blood while carbon dioxide diffuses out. This process is often assisted by a countercurrent exchange mechanism, where water flows in the opposite direction to blood flow, maximizing oxygen uptake. Overall, this system efficiently supports the metabolic needs of aquatic organisms.
The respiratory system of most non-aquatic animals is entirely enclosed in the human body and connected with the lungs. Many aquatic animals have developed open respiratory systems that include features like the gills.
It prevents food from going to the respiratory system
The main function of the respiratory system is the exchange of gases. It brings in oxygen and elmiinates carbon dioxide.
The main function of the respiratory system is the exchange of gases. It brings in oxygen and elmiinates carbon dioxide.
The respiratory system cannot function without the windpipe.
excretory system
cardiovascular
Breathing
The main function of the respiratory system is to provide the body with a constant supply of oxygen.
air passage
Gas exchange
air passage