The Circulatory system!

Your body can't work without it

Your heart is located between the lungs and above your diaphragm.

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parts of your heart

You have four chambers in your heart. They are the left and right ventricle, and the left and right atrium. The atriums receive blood that comes back from the rest of the body. THe ventricles take blood from the atriums and push blood to the rest of the body.

other parts

  • You also have several valves that allows blood to leave one part of the heart and enter another one. They are called the tricuspid, aortic, pulmonary, and the mitral valve.
  • In your heart, there are also have layer of muscle and skin that make up the outer, middle, and inner epicardium.
  • pericardium covers the heart to protect it.
  • Your heart had layers of skin. They are called the epicardium, myocardium, and endocardium.


kinds of arteries

coronary arteries-suply blood to the heart's tissues.

brachia cephalic, left common carotid, artery, and the left subclavian artery-arteries that originates from the aortic arch in the aorta.

celiac artery-brach of the abdominal aorta. gondola arteries-suply blood the the adrenal glands kidneys and ovaries or testes,respectively.

left and right common lilac arteries- supply blood the lower regions of the abdominal wall, pelvic organs, and the lower extremeness.


Valves

tricuspid valve- between right atrium and the right ventricle allows blood to move from the right to let ventricle.


pulmonary valve- allows blood to lace the right ventricle and doesn't allow blood to back flow.

mitral valve- prevents blood from going back into the left atrium.

aortic valve- allows blood to leave the left ventricle as the heart contracts.


Pathway of the heart

The blood goes through circuits called the pulmonary circuit that sends blood by the lungs to pick up with oxygen, then move blood back to the lungs later to drop off carbon dioxide. The systemic circuit sends blood with oxygen and nutrients to the cells and remove unwanted things.


blood with low oxygen comes through out the right atrium. When the will of the atrium contracts, the blood goes through the right ventricle, then to the pulmonary valve once the ventricle contracts. From there, the capillaries get the blood to give it oxygen and returns to the pulmonary veins.


How the blood gets around

The blood pumps from the heart to the lungs to get oxygen. Then the blood moves to the other parts of the body, then back to the heart and the lungs to get even more oxygen. Every time the blood gets oxygen, the blood goes to different parts of the body.