Body Systems Major Organs and Functions

Systems in the human body

Our bodies are made up of 11 basic organ systems that manage all the essential body functions.

Integumentary System (Skin, Hair, Nails)

The integumentary system is the largest organ of the body, equaling 15-20% of our total body mass. It acts as a barrier to physical, chemical, and biological agents.

Digestive system

Beginning with our mouths, this system is responsible for the breaking down and absorption of nutrients and the elimination of the waste not utilized by the body.

Nervous System– (Brain, Spinal Cord, Nerves)

This system is actually made up of two distinct parts; the central nervous system (CNS) and the peripheral nervous system.