The circulatory system, composed of the heart and blood vessels, circulates blood throughout the body and plays a crucial role in maintaining homeostasis.
- The heart pumps blood, delivering oxygen and nutrients to cells and removing waste products.
- Blood vessels, including arteries, capillaries, and veins, facilitate the exchange of substances between blood and tissues, helping regulate body temperature and fluid balance.
2. Respiratory system:
The respiratory system, consisting of the lungs and respiratory passages, enables gas exchange between the body and the environment.
- In aardwolves and hyenas, the lungs are responsible for taking in oxygen and expelling carbon dioxide.
- The respiratory system aids in maintaining the proper balance of these gases in the bloodstream, regulating blood pH and supporting cellular respiration.
- Efficient gas exchange is vital for maintaining energy production and overall body functions.