The heart and the lungs are the primary organs of the circulatory system. The lungs are responsible for adding oxygen to blood. This oxygen-rich blood is then pumped to the heart, which then circulates it through the arteries to all the tissues throughout the body. Veins then return the blood for the addition of new oxygen and recirculation.Continue Reading
Blood circulates through two bodily systems: the systemic and the pulmonary circulatory systems. The systemic circulatory system is the system that transports the blood from the heart to the other organs and tissues in the body. The human heart is made of four separate chambers. The two top chambers allow blood to enter the heart, while the two lower chambers allow blood to leave the heart. The heart receives signals from the body telling it how much blood to pump.
The pulmonary circulatory system consists of a short loop that circulates the blood from the lungs to the heart. Without this connection, the heart would not be able to pump out blood containing the oxygen needed by the other parts of the body. Oxygenation of the blood occurs in the lungs, with oxygen attaching itself to the hemoglobin in the red blood cells.Learn more about Organs
In a shark's circulatory system, the heart pumps blood first to the gills where it is oxygenated, then to the organs and muscles, and finally back to the heart. To remain oxygenated, the blood must flow continually, and this is accomplished through the opening and closing of a shark's mouth as well as the muscle movements of its body.Full Answer >
The four organs of excretion are the kidneys, the lungs, the skin and the liver. Excretion is the process of elimination of toxic waste products and substances in excess of requirements from the human body.Full Answer >
The functions of human organs of speech are to produce sounds that are perceived as speech by pushing the air from the lungs up and, while modifying it by various means, out of the mouth. Organs of speech produce consonants and vowels and voiced and voiceless sounds.Full Answer >
The major organs of the respiratory system are the lungs, trachea, bronchi and diaphragm. The respiratory system works together with the cardiovascular system to deliver oxygen to the organs and with the autonomic nervous system to regulate breathing.Full Answer >