It is a control system which sends and receives signals to the organs in the form of secret hormones.
Heart's responsibility is to pump the blood throught human body.
Kidney's job is to remove waste and extra fluid from blood.
It has many functions, including removal of harmful chemicals, breakdown drugs, filter blood.
The job of lungs is to remove oxygen from the air and transfer to the blood.
The functionality of circulatory system is to circulate blood, oxygen, carbon dioxide and hormones.
The job of digestive system is to break down and absorb food and remove waste from the body.
It helps us for growth of hormones an sextual function.
The immune system's job is to protect from bacteria, viruses and other pathogens in the body.
It helps to defence body, It contains white blood cells which fights with body infection.
It contain central nervous system and spinal cord which sends signals to different parts of body.
It contains 650 different muscles that helps in body movement.
It helps humans to reproduce.
It helps us to take in vital oxygen and expel carbon dioxide while breathing.
Ir consists of 206 bones that are connected by tendons, ligaments and cartilage.
It helps to eliminate a waste product called urea from the body.
It is the largest organ of the body which defences us against bacteria, viruses and other pathogens.