the kidney's.
No, a nephron is not an organ. It is the basic structural and functional unit of the kidney and filters excess salt and water from the blood. The kidney is the main organ of the urinary system. Without a kidney, your body cannot create urine and you blood must be filtered with a dialysis machine.
your lungs
The main organ of the blood transport system in a mammal is the heart.
heart, blood and blood vessels
the heart is the main circulatory organ of the frog
Heart
liver
Both kidneys and the liver, along with many lymph nodes.
heart is the main organ that pumps the blood to circulate all over the body.
When a person is receiving an organ transplant, it is necessary for the receiving organ to come from a person with a blood type similar or complimentary to the receiver's blood type. This helps ensure that the organ will not be rejected by the receiver's body.
in the human immune system the main function of the is filtering blood
The main organ of the circulatory system is the heart.The heart pumps blood tothe other parts of the body.