List of systems of the human body

Circulates blood around the body via the heart, arteries and veins, delivering oxygen and nutrients to organs and cells and carrying their waste products away, as well as keeping the body's temperature in a safe range.

Absorbs nutrients and removes waste via the gastrointestinal tract, including the mouth, esophagus, stomach and intestines.

Influences the function of the body using hormones.

System that secrete substances through ducts for various functions.

The integumentary system comprises skin and its appendages; hair, nails, sweat glands and oil glands.

Defends the body against pathogens that may harm the body. The system contains a network of lymphatic vessels that carry a clear fluid called lymph.

Enables the body to move using muscles.

Collects and processes information from the senses via nerves and the brain and tells the muscles to contract to cause physical actions.

The reproductive organs are required for the production of offspring.

Brings air into and out of the lungs to absorb oxygen and remove carbon dioxide.

Bones maintain the structure of the body and its organs.

The urinary system (also known as renal system) filter blood with the help of kidneys to produce urine, and get rid of waste.

• List of distinct cell types in the adult human body
• List of organs of the human body