This protects the body from damage and includes skin, hair, scales, and has a variety of functions; it may serve to waterproof, cushion and protect the deeper tissues, excrete wastes, regulate temperature and is the location of receptors for pain, sensation, pressure and temperature. In humans the integumentary system additionally provides vitamin D synthesis.

This system allows a species to move.The muscular system in vertebrates is controlled through the nervous system, although some muscles(such as the cardiac muscle) can be completely autonomous.

This system is the framwork that provides protection.The average adult human skeletoon has around 206 bonees. These bones meet at joints, the majority of which are freely movable. The skeleton also contains cartilagge for elasticity. Ligamentts are strong strips of fibrous connective tissue that hold bones together at joints, thereby stabilizing the skeleton during movement.

This system passes nutrients like gases, hormones, blood cells, and waste products to and from the cells to help fight disease and maintain homeostasis. Includes the heart, blood, and blood vessels.

This system takes food and extracts the nutriens then expells what is left. Includes mouth, esophagus, small and large intestines.

This system is a network of cells that communicates information of its surroundings. Composed of nuerons, central and peripheral nervous system, nerve cord, spinal cord, and the brain.

This system consists of glands that release hormones into the body regulating metabolism, growth, development, punerty,tissue function, and even mood. Some of the major glands are pineal(female), pituitary(male), thyroid, thymus, adrenal(m), pancreas(f), Ovary(f), and testes(m).

This system is in charge of reproduction. The major organs of the human reproductive system include the external genitallia (penis and vulva) as well as a number of internal organs including the gamette producing gonasds (testicles and ovaries).

This system allows for a gas exchange. Include airways, lungs, and the respiratory muscles. Molecules of oxygen and carbon dioxide are passively exchanged, by diffusion, between the gaseous external environment and the blood. This exchange process occurs in the alveolar region of the lungs

This system removes excess materials from the organism.Since the normal operation of most biological systems creates waste, the excretory system is not necessarily distinct from other systems. Instead, it often represents the various excretory processes of several different systems.

This system protects against disease.