Functional organization of body_organized_organized (2).pdf

Functional organization of human body  Organ systems: 3- Respiratory System (as lungs) It supplies the body with oxygen (O2) and eliminates carbon dioxide (CO2). Functional organization of human body  Organ systems: 4- Cardiovascular system (heart & blood vessels): It transports necessary molecule...

Functional organization of human body  Organ systems: 3- Respiratory System (as lungs) It supplies the body with oxygen (O2) and eliminates carbon dioxide (CO2). Functional organization of human body  Organ systems: 4- Cardiovascular system (heart & blood vessels): It transports necessary molecules (as nutrients and hormones) via blood to the cells. Functional organization of human body  Organ systems: 5- Gastrointestinal System: It converts food to usable nutrients (then absorbed to blood to body cells). Functional organization of human body  Organ systems: 6- Musculoskeletal system (muscles & bones): It provides structure, movement and protection and support for other organs. Functional organization of human body  Organ systems: 7- Urinary System: It allows for the removal of waste substances (urea, creatinine and uric acid, also excess ions and water), from blood to urine (out of body). Functional organization of human body  Organ systems: 8- Reproductive system: It provides a mechanism to maintain the overall population of the species thus allowing for population homeostasis. Functional organization of human body  Organ systems: 9- Immune system: It provides defense against invading pathogens (as bacteria, viruses & tumors).