the system that allows us to breath

controls our thoughts, memory and speech, movement of the arms and legs, and the function of many organs within our body.

absorbs nutrients and minerals from food. Digestion involves two distinct parts.

the system that digests our food

is an organ that pumps blood throughout the body

stores urine, allowing urination to be infrequent and controlled

the system that pumps blood through our bodies

are the center of the respiratory (breathing) system. Every cell of the body needs oxygen to stay alive and healthy.

provides protection from: mechanical impacts and pressure, variations in temperature, micro-organisms, radiation and chemicals

the system that excretes urinary wastes

secretes acid and enzymes that digest food.

filters the blood coming from the digestive tract, before passing it to the rest of the body.

controls nerves all over the body

absorbs water from the remaining indigestible food matter and transmit the useless waste material from the body.