Lymph is not a circulatory system, but it supports the circulatory system.
According to the Blood and Lymph Diseases - NCBI, the circulatory system is comprised of the blood, heart, and blood vessels. The lymphatic system, which includes lymph, lymph nodes, and lymph vessels, plays a crucial role in maintaining fluid balance.
Here's a breakdown:
- Circulatory System: The primary system responsible for circulating blood, carrying oxygen, nutrients, and hormones throughout the body.
- Lymphatic System: A network of vessels and tissues that:
- Drains excess fluids and proteins from tissues.
- Returns these fluids to the bloodstream.
- Helps prevent tissue swelling.
- Plays a role in immune function.
| Feature | Circulatory System | Lymphatic System |
|---|---|---|
| Primary Function | Transport of blood, oxygen, nutrients, hormones | Drains excess fluid, supports the circulatory system |
| Main Components | Heart, blood vessels, blood | Lymph, lymph nodes, lymph vessels |
In summary, while the lymphatic system works closely with the circulatory system, it is a separate system with its own distinct functions and components. The lymphatic system supports the circulatory system, but it is not the circulatory system itself.
