This is a list of the main organ systems in the human body.
- Clockwise from top left: integumentary system
- skeletal system
- nervous system
- cardiovascular system
- endocrine system
- (missing exocrine system)
- muscular system
Circulatory system/cardiovascular system edit
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.
Digestive system/excretory system edit
System to absorb nutrients and remove waste via the gastrointestinal tract, including the mouth, oesophagus, stomach and intestines.
Endocrine system edit
Influences the function of the body using hormones.
Exocrine system edit
System that secrete substances through ducts for various functions.
Integumentary system edit
The integumentary system comprises skin and its appendages; hair, nails, sweat glands and oil glands.
Immune system/lymphatic system edit
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.
Muscular system edit
Enables the body to move using muscles.
Nervous system edit
Collects and processes information from the senses via nerves and the brain and tells the muscles to contract to cause physical actions.
Reproductive system edit
The reproductive organs are required for the production of offspring.
Respiratory system edit
Brings air into and out of the lungs to absorb oxygen and remove carbon dioxide.
Skeletal system edit
Urinary system/renal system edit
The urinary system (also known as renal system) filter blood with the help of kidneys to produce urine, and get rid of waste.