What are the major organs of the Circulatory system?
The circulatory system is composed of the heart and blood vessels, including arteries, veins, and capillaries. Our bodies actually have two circulatory systems: The pulmonary circulation is a short loop from the heart to the lungs and back again, and the systemic circulation (the system we usually think of as our circulatory system) sends blood from the heart to all the other parts of our bodies and back again. The main organs involved in blood circulation are... 1) The Heart: it pumps blood throughout the body. 2) The Brain: It tells the heart when to pump and how fast to pump. ( The Brain tells the heart to speed up during exercise, and to slow down during rest. ) 3) The Lungs: The lungs bring in air, and the blood goes through the lungs to pick up the oxygen and bring it throughout the rest of the body as the heart pumps. The arteries, blood vessels, veins and capillaries are part of the circulatory system, but are not considered organs.
What are the major organs of the circulatory system? What are their functions?
The three major organs I would say are the heart, blood vessels, and blood.Blood’s function is to carry nutrients and or waste. Blood helps the body by dropping nutrients off to all parts of your body while taking waste away from all parts of your body and allowing your body to dispel of it (by filtration of the kidneys or expiration).The heart’s function is to pump blood throughout the body so that blood can get carbon dioxide and other waste out of the body, AND so that blood can get nutrients and oxygen to all parts of the body (like the digestive system, your brain, your muscles, etc.). The heart can be divided into 4 chambers, Left and Right ventricle, Left and Right Atrium. The atrium accepts blood into the heart, the right atrium takes in deoxygenated blood and brings it to the right ventricle. The left atrium takes in oxygenated blood and brings it into the left ventricle. The right ventricle pumps deoxygenated blood out to the pulmonary arteries (so that it can go to the lungs and become oxygenated) and the left ventricle pumps oxygenated blood out into the systemic arteries (so that it can provide oxygen and nutrients to all parts of your body).The function of Blood Vessels is to just carry blood throughout the body. Blood vessels can be classified as artery and veins. Artery carries blood AWAY from the heart and to parts of your body, veins carry blood TO the heart from other parts of your body.The circulatory system travels like this… Deoxygenated blood enters the right atrium of the heart via major veins (Inferior and Superior vena cavaes). Then the right ventricle pumps that deoxygnated blood out through the pulmonary arteries. The pulmonary arteries carry deoxygenated blood to the lungs, where they become oxygenated. Then the blood continues and returns to the heart via the pulmonary veins. The newly oxygenated blood enters the left atrium, and then into the left ventricle. The left ventricle pumps out the oxygnated blood into the aorta… The aorta then branches out again and again and again and these are all known as the systemic arteries. As blood continues giving oxygen it becomes deoxygenated and eventually returns to the right atrium via the major veins… Beginning the cycle anew.
What is the main organ of the circulatory system?
Heart
What is the circulatory system?
The circulatory system is an organ system that moves nutrients, gases, and wastes to and from cells to help fight diseases and help stabilize body temperature and pH to maintain homeostasis. This system may be seen strictly as a blood distribution network, but some consider the circulatory system as composed of the cardiovascular system, which distributes blood, and the lymphatic system, which distributes lymph. While humans, as well as other vertebrates, have a closed cardiovascular system (meaning that the blood never leaves the network of arteries, veins and capillaries), some invertebrate groups have an open cardiovascular system. The most primitive animal phyla lack circulatory systems. The lymphatic system, on the other hand, is an open system. http://en.wikipedia.org/wiki/Circulatory_system
What are the jobs of the organs in the circulatory system?
move blood, oxygenate, cleanse and keep you going.
What is a circulatory system?
As the name itself indicates, circulatory system helps in flowing of blood throughout the body. This system consists of Heart and blood vessels.HEARTIt is the pumping organ of the body which makes the blood flow in the vessels. It's functions are similar to that of a mechanical motor in a water system which helps in the movement of water. Heart is made up of muscle which undergoes contractions and relaxations to pump the blood to different parts of the body.BLOOD VESSELSThese are hollow elastic tubes which carry blood to different body parts. The blood vessels consists of arteries, veins and are interconnected by capillaries.Arteries: These are the vessels which supply blood to all the organs. The blood in these arteries are rich in oxygen and nutrients which are utilized by the organs.Veins: These are the vessels which collects the blood from all organs and finally drain them into heart. The blood in veins have lesser amounts of oxygen and nutrients compared to arteries.Capillaries: These are small interconnecting vessels which connect arteries to veins. These are very thin walled and the exchange of different substances mainly takes place through these capillaries.NOTE: Capillaries are absent in lower organisms such as insects, snails etc. The blood flows freely in the body spaces(sinusoids) present in them.
How do the organs work with the human circulatory system?
How do the organs work with the human circulatory system?I’m not clear on what you are asking. The components of the circulatory system are the heart, the blood vessels (i.e. arteries, veins), and blood. All tissues in the body, including those of other organs such as the stomach or the brain, receive blood from the heart through arteries and return blood to the heart through veins.Read more: Main Circulatory System Organs
Which organ acts as a pump in the circulatory system? What is it made of?
Really not a good use of Quora to dredge for answers to basic biology exam questions. Everyone should know the answer to this as failure of that organ is the primary cause for about 30% of deaths. It’s a truly amazing organ that is made of amazing parts, that you absolutely should know all about and take care of for the sake of your own health.Here’s one little fact (a relatively recent finding). This organ, when developed, has no stem cells to allow it to regenerate. Another reason to take good care of it.