What are the functions of skin?
Thermoregulation, blood reservoir, protection, sensations, excretion and absorption,
What are the functions of bones?
Provides support(frame for muscles to attach), protection, aids in movement (as levers), mineral storage and release, blood cell production and triglyceride storage
What are the functions of muscles?
Facilitate movement (via contraction), generating heat
What is the function of the heart?
To pump blood around the body; in order to provide cells with minerals (oxygen +) and to rid of wastes through the blood (CO2 +)