How many blood vessels leaves the heart?

Are there many or few vessels serving as conduits between the lungs and the heart?

There are many vessels serving as conduits between the lungs and the heart. This is because the heart and the lungs need enough oxygenated blood at all times.

What is the container of cardiovascular system?

The heart is the main "container", along with the great vessels, such as the aorta and the vena cava as well as many of the other larger arteries and veins.

How many tubes are in your heart?

The heart itself does not have tubes; however, it comprises four chambers: two atria and two ventricles. Blood vessels, specifically arteries and veins, connect to the heart and can be considered tubes that transport blood. The major vessels include the aorta, pulmonary arteries, and veins, along with the superior and inferior vena cavae. These vessels play a crucial role in circulating blood throughout the body.

List the organs of the circulatory system?

The main organ of the circulatory system is the heart. Some consider the blood an organ as well, since it is basically liquid tissue. The third and final component of the circulatory system is the blood vessels - veins and arteries - that carry the blood throughout the body.

How many main blood vessels does the earthworm have?

2 major blood vessels

How does your pulse and blood pressure work?

Your "pulse" is how fast your heart is beating, and is measured in how many beats in a minute. This is controlled by several things. One is how healthy your heart is (if you have a strong heart, i.e. from exercising, your heart does not have to beat as often for the same effect and therefore your pulse will be lower). If you are exercising, your pulse or heart rate will increase to meet the increasing oxygen demands of your muscles. Also, if you are afraid, stressed out, or angry, your sympathetic nervous system stimulates the "flight or fight" response which increases your heart rate for the same reason. Your Blood pressure, however, is how much pressure is actually being exerted on the insides of your blood vessels when your heart beats. This is affected by three things: the size of your blood vessels, the strength of your heart, and the amount of fluid or blood in your bloodstream. The flight or fight response can affect these things by causing your heart to beat harder, therefore exerting more pressure, and by causing your blood vessels to constrict, or narrow. Both of these things raise your blood pressure. Again, exercise also causes your heart to beat harder and raises your blood pressure. Nicotine causes your blood vessels to constrict and this increases blood pressure. If you are dehydrated or bleeding severely, your blood pressure goes down because there is less fluid in your blood stream. Your body will compensate for this by increasing your pulse rate and constricting your blood vessels. The numbers you see in a blood pressure represent your systolic Blood Pressure (the first and usually higher number) and your diastolic Blood Pressure. The systolic blood pressure is the pressure exerted on your blood vessels when your heart pumps. This is why this pressure is higher. The diastolic Blood Pressure is the pressure in your blood vessels in between heart beats. Review: Related Links for more info.

What is the role of the blood vessels on the outside of a heart?

Capillaries are the smallest of a body's blood vessels, measuring 5-10 μm(Micrometre) in diameter, which connect arterioles and venules, and enable the interchange of water, oxygen, carbon dioxide, and many other nutrient and waste chemical substances between blood and surrounding tissues.

What is a cardiac MRI used for?

A Cardiac MRI is used for diagnosing and assessing many conditions related to the heart and major blood vessels. These can include heart disease and heart valve problems.

State two main fuction and organs of the circulatory system?

Two many functions of the circulatory system are the movement of nutrients and oxygen to the tissues, and movement of wastes from the tissues to the excretory system. The main organs are the heart and blood vessels.

What are the name of our blood vessels?

ARTERIESArteries are blood vessels that carry blood away from the heart. All arteries, with the exception of the pulmonary and umbilical arteries, carry oxygenated blood. Aorta is the largest artery. Arises from heart.CAPILLARIESCapillaries are the smallest of a body's blood vessels and are part of the microcirculation. They are only 1 cell thick. These micro vessels, measuring 5-10 cm in diameter, connect arterioles and vernicles, and enable the exchange of water, oxygen, carbon dioxide, and many other nutrient and waste chemical substances between blood and surrounding tissues.VEINSIn the circulatory system, veins are blood vessels that carry blood toward the heart. Most veins carry deoxygenated blood from the tissues back to the heart; exceptions are the pulmonary and umbilical veins, both of which carry oxygenated blood. They differ from arteries in structure and function. for example, arteries are more muscular than veins and they carry blood away from the heart.

Can blood vessels make new blood vessels?

Blood vessels can form new blood vessels, this is called angiogenesis.

How does blood change?

because it does. just face is your blood will change Some changes is start from the heart and blood vessels normally occur with age, but many other changes that are common with aging are due to modifiable factors that, if not treated, can lead to heart disease