The acquired immune system is the immune system that has antibodies.
Understanding Antibodies
- Antibodies are special proteins that help protect the body from specific invaders like bacteria, viruses, and other pathogens.
- They are produced by specialized cells called B lymphocytes.
- The production of antibodies is a key function of the acquired immune system.
Acquired vs. Innate Immune Systems
| Feature | Innate Immune System | Acquired Immune System |
|---|---|---|
| Response Time | Immediate, non-specific | Slower, highly specific |
| Memory | None | Develops memory after exposure, allows for faster response upon subsequent encounters |
| Key Components | Skin, mucous membranes, phagocytes, natural killer cells | B lymphocytes (produce antibodies), T lymphocytes |
| Antibodies | Does not produce antibodies | Produces specific antibodies to target invaders |
How the Acquired Immune System Creates Antibodies
The acquired immune system develops antibodies through a complex process:
- The body is exposed to an invader (antigen).
- B lymphocytes recognize the antigen and start producing specific antibodies.
- These antibodies bind to the invader and mark it for destruction.
- The body retains memory cells that allow for a quicker and stronger antibody response upon subsequent encounters with the same invader.
Example
If you get a flu virus, your acquired immune system will develop antibodies against that specific flu strain. If you are exposed to the same flu strain again, your body will remember it and launch a quicker and stronger antibody response. This is why the acquired immune system is essential for long-term immunity.
In summary, the acquired immune system utilizes antibodies to provide targeted defense against specific threats, building up an immunological memory in the process.
