Main role: To filter out cellular wastes, toxins and excess water or nutrients from the circulatory system.
Main role: To break down food and absorb nutrients that are necessary for growth and maintenance
Organs: Hypothalamus, pituitary and thyroid,
Main role: To relay chemical messages through the body that will help control physiological processes.
Main role: To provide movement and also to control the movement of materials through some organs, such as the intestines.
Organs: Lymph nodes, white blood cells, T- and B- cells.
Main role: To destroy and remove invading microbes and viruses from the body. It also removes fat and excess fluids from the blood.
Organs: Cerebellum and peripheral nerves.
Organs: Nose, trachea and lungs.
Organs: bladder and urethra.
Organs: Pancreas and adrenal glands.
Organs: Arteries, Veins and Capillaries
Organs: Brain and spinal cord
Main role: To relay electrical signals through the body. It directs behaviour and movement and, along with the endocrine system, controls physiological processes.
Organs: mouth, esophagus and stomach
Organs: Bronchi and bronchioli
Organs: Tendons and ligaments.
Organs: Bones and cartilages
Organs: Testes, seminal vesicles and penis.
Roles: To excrete wastes, regulate temperature and it is the attachment site for sensory receptors to detect pain, sensation, pressure and temperature.
Organs: The skin and its appendages (hair and nails).
Main role: To transport nutrients, gases (such as oxygen and CO2), hormones and wastes through the body.
Organs: Ovaries, oviducts, uterus, vagina and mammary glands.
Main role: To provide gas exchange between the blood and the environment.
Main role: To provide support for the body and to protect delicate internal organs.
Main role: To manufacture cells that allow reproduction.
Organs: Kidneys and ureters.
Organs; Spleen and lymphatic vessels
Organs: Heart, blood vessels and blood.
Organs: Small and large intestines
Organs: skeletal muscles and smooth muscles.
Main role: To protect the body from damage,
Organs: Biceps and Triceps