Your immune system is a network of organs, white blood cells, proteins and chemicals that work together to protect you from invaders (like germs) that can harm you.

Many species have two major subsystems of the immune system. The innate immune system provides a preconfigured response to broad groups of situations and stimuli. The adaptive immune system …

Nov 29, 2025 · The immune system is a group of defense responses found in humans and other advanced vertebrates that helps repel disease-causing entities. Immunity from disease is conferred …

Mar 11, 2025 · The immune system is the body’s tool for preventing or limiting infection. Its complex network of cells, organs, proteins, and tissues enables the immune system to defend the body from …

Apr 13, 2025 · What Is the Immune System? The immune system is a vast, interconnected network of organs, cells, and molecules that protects your body from harmful substances, pathogens (like …

The immune system works to keep germs and other foreign substances out of the body and destroy any that get in. It's made up of a complicated network of cells and organs.

The immune system is the body’s defense mechanism to keep you healthy. It is a complex network of cells, tissues, and organs that work together to identify and eliminate pathogens.

All immune cells come from precursors in the bone marrow and develop into mature cells through a series of changes that can occur in different parts of the body.

. The immune system has two parts. There’s the immune function that you’re born wit. , called the innate immune system. The innate immune system is a general defense mechanism that protects you from …

Feb 3, 2025 · When you understand everything that your immune system does for you and how everyday things affect it, you can help it keep you well. Your immune system uses white blood cells, …