For example, the circulatory and digestive systems work jointly to deliver nutrients throughout the body.

Except for the reproductive system, each system is necessary for survival.

It also carries away carbon dioxide and other waste products.

Model of human organs

Peter Dazeley / Getty Images

Blood pressurethats too high puts extra stress on other organs and tissues.

Low blood pressure means the bloodand its nutrientswont make it to where it needs to go.

The Lymphatic System

Thelymphatic systemis the drainage system of the body.

It plays an important role in your immunity, blood pressure regulation, digestion, and other functions.

This includeslymphocytesandmonocytes(white blood cells) and antibodies (proteins that recognize bacteria and viruses).

It also moves oxygen and carbon dioxide into and out of the bloodstream (respiration).

Carbon dioxide is made into carbonic acid, which affects the pH balance.

It protects the body from the external environment and helps regulate body temperature.

The GI tract and the endocrine system have a lot of interaction.

The endocrine system produces the hormones that regulate digestion and the absorption of nutrients.

One Organ, Two Organ Systems

Some organs belong to more than one organ system.

It is also part of the endocrine system because it produces hormones that help regulate blood sugar.

The removal of excess fluid through this organ system also helps regulate blood pressure.

It stores fat in the body, as well as key minerals like calcium.

Think of it as your bodys command station.

All body processes, reactions, thoughts, and movements stem from this organ system.

The Immune System

Theimmune systemhelps the body fight against infection and other diseases.

All of its organs are borrowed from other organ systems.

Summary

The body has 11 different organ systems.

Each group of organs has a different complex function, such as movement, breathing, or digestion.

In some cases, one system works closely with another on a particular task.

For example, the endocrine system interacts with the gastrointestinal system to control digestion and metabolism.

When your organ systems are working properly, they help your body stay in balance and maintain your health.

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