HUMAN BODY

The main systems of the human body are:

Circulatory system / Cardiovascular system: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.

Keeps the body's temperature in a safe range.

Digestive system and Excretory system:System to absorb nutrients and remove waste via the gastrointestinal tract, including the mouth, esophagus, stomach and intestines.

Eliminates waste from the body.

Endocrine system:Influences the function of the body using hormones.

Integumentary system / Exocrine system:Skin, hair, nails, sweat and other exocrine glands

Immune system and lymphatic system:Defends the body against pathogens that may harm the body.

The system comprising a network of lymphatic vessels that carry a clear fluid called lymph.

Muscular system:Enables the body to move using muscles.

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

Renal system / Urinary systemThe system where the kidneys filter blood to produce urine, and get rid of waste.

Reproductive system:The reproductive organs required for the production of offspring.

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

Skeletal system:Bones maintain the structure of the body and its organs.

Clockwise from top left: the Integumentary System

Skeletal System

Nervous System

Cardiovascular System

Endocrine System

and Muscular System.

Clockwise from top left: the Lymphatic System

Respiratory System

Urinary System

Reproductive System (Female & Male)

and Digestive System .