Circulatory system
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Circulatory System. By: Yesenia Arriaga And Elizabeth Pacas. Open and Closed System. Closed System. A closed circulatory system means that the blood is carried through the vessels

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Circulatory System

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Circulatory system

Circulatory System

By: Yesenia Arriaga

And Elizabeth Pacas

Open and closed system

Open and Closed System

Closed System

A closed circulatory system means that the blood is carried through the vessels

A open circulatory system means that the blood is not carried through vessels it just bathes the organs in the space of the body

The blood that travels through the body is made up of two main things, fluid called plasma and cells that float in the plasma

Open System

Circulatory system



Platelets have a specific roles when it comes to blood clotting. They activate a event that makes it possible for fibrinogen to change into threads called fibrin. Fibrin then creates a net that traps blood cells and platelets to form a clot.

  • The Plasma is made up of water mostly.

  • It contains dissolved substance like glucose, hormones, ions, and gases

  • It contains many types of protein like albumin, fibrinogen, and lipoproteins which are made by the liver.

  • The plasma supplies 50% of blood volume

A fluid the blood

A Fluid(The Blood)

Red Blood Cells and Hemoglobin

White Blood Cells and Lymphocytes

Make up 5% of blood volume

White Blood Cells fight off disease in your body so they are phagocytes which means they are good at eating viruses, bacteria, parasites, dead cells, and more.

They are also Lymphocytes which help defend your immune system

Lymphocytes come in two types of cells B-Cells and T-Cells

Red Blood Cells

  • The red blood cells take up 45% of the blood volume.

  • Red Blood Cells are with protein called hemoglobin. They take up most of the cell that there is no space for nucleus or organelles. Only cells with nucleus

  • Hemoglobin is the one that carries the oxygen not the red blood cells

  • Hemoglobin are made up of iron. If not enough iron hemoglobin can’t be made so that means no oxygen for the red blood cells to go through cellular respiration to make ATP

  • which means no oxygen to be transport through body or ATP for body as well

White Blood Cells

B cells t cells

B-Cells, T-Cells

T- Cell


B-cells make antibodies for specific viruses, bacteria, or other harmful things in your body

T-Cells have two roles. One is to help the B-cells and T-cells become helper t-cells that can divide and grow new cells.

The other role is to help cells that have been infected by a viruses

So we know that viruses can’t reproduce so they pretend to be parasites and go inside our cells . In order for helper T-cells to kill the cell that has be attacked they make Killer T-cells.

Red Blood Cell

Pump of the heart

Pump of the Heart

I t has two pumps in one.

Right side receives blood from body and pumps it to the lungs

Left side receives blood from lungs and pumps it out to body

The heart has four chambers. The two right chambers at the top are called atria. They receive the blood from the body and lungs

The chambers on bottom are called ventricles they squeeze the blood out to body and lungs

The atria and ventricles work together while the atria is filling up with blood the ventricles are squeeze out blood

The heart as two heart values . The mitral value and tricuspid value let the blood flow from atria and ventricles. The aortic value and pulmonary value control the blood flow. They work together letting blood flowing forward and opening up to let blood move forward.

A network of tubing the blood vessels

A network of Tubing(The blood Vessels)

  • The blood moves through arteries and veins which work together called vessels

  • The vessels that move blood away from heart are called arteries

  • The vessels that carry blood back to heart are called veins

  • It takes the body 60 seconds to circulate all the blood and cells in your body

  • The left side of your heart send the blood filled with oxygen to the body . Then the body takes that oxygen to the cells which then makes carbon dioxide and other necessary substance. Which are carried away from blood

  • The blood returns to the heart and the ventricles move the blood to the lungs so the lungs can then take out the carbon dioxide which we exhale. Once we inhale the blood takes in the oxygen and the process of circulation starts all over.

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