Human body sustems
Excretory system
Gets rid of bodies waste
Immune system
Made up of tissues and specialized white blood cells that recognize an attack foreign substances in the body
Endocrine system
Many body processes, such as growth and energy production, are directed by hormones. These chemicals are released by the glands of the endocrine system.
Urinary system
The body's cells produce waste products, many of which are eliminated in urine. The job of the is to make urine and expel it from the body.
Skeletal system
The skeleton is a strong yet flexible framework of bones and connective tissue. It provides support for the body and protection for many of its internal parts.
Circulatory/ cardiovascular system
This system consists of the heart and a network of vessels that carry blood. It supplies oxygen and nutrients to the body's cells and removes waste products.
Lymphatic system
This system is a network of vessels that collects fluid from tissues and returns it to the blood. It also contains groups of cells that protect the body against infection.
Muscular system
consists of layers of muscles that cover the bones of the skeleton, extend across joints, and can contract and relax to produce movement.
respiratory system
is centred on the lungs, which work to get life-giving oxygen into the blood. They also rid the body of a waste product, carbon dioxide
nervous system
is the body's main control system. It consists of the brain, the spinal cord, and a network of nerves that extend out to the rest of the body.
Digestive system
takes in the food the body needs to fuel its activities. It breaks the food down into units called nutrients and absorbs the nutrients into the blood.
