The Circulatory The Circulatory SystemSystem

Warm UpWarm Up

Write down three things you can do Write down three things you can do to keep your heart healthyto keep your heart healthy

The Circulatory SystemThe Circulatory System

This system carries This system carries food and oxygen to food and oxygen to all the cells of the all the cells of the body.body.

It is made up of the It is made up of the heart, blood & heart, blood & blood vessels.blood vessels.

The Circulatory has 2 big jobs The Circulatory has 2 big jobs

Big job # 1Big job # 1 – – Carrying Food, Carrying Food, Water, & OxygenWater, & Oxygen. .

The circulatory system has the task The circulatory system has the task of delivering the necessary “goods” of delivering the necessary “goods” to the cells. It’s like getting the to the cells. It’s like getting the newspaper each morning.newspaper each morning.

Big Job #2Big Job #2 - -Removing Wastes from Removing Wastes from the cellsthe cells. .

In our everyday activities we create In our everyday activities we create waste. The wastes cannot stay in the waste. The wastes cannot stay in the cells. They would build up and prevent cells. They would build up and prevent the cells from doing their job. the cells from doing their job.

The circulatory system carries the The circulatory system carries the waste to other parts of the body where waste to other parts of the body where they are filtered and removed from the they are filtered and removed from the bodybody

The HeartThe Heart The heart is a muscle. The heart is a muscle.

Its job is to pump Its job is to pump blood to all of the cells blood to all of the cells in your body.in your body.

The heart is the The heart is the strongest muscle in strongest muscle in the human body.the human body.

It pumps the blood to It pumps the blood to your brain cells, your brain cells, nerves, and bone nerves, and bone cells.cells.

It pumps 24 hours a It pumps 24 hours a day without a break.day without a break.

FACTS ABOUT HEARTFACTS ABOUT HEART

The Heart is about the size of your fist and The Heart is about the size of your fist and is located in the middle of your chest.is located in the middle of your chest.

Its upper chambers are the right atrium Its upper chambers are the right atrium and left atrium. The lower chambers are and left atrium. The lower chambers are the right ventricle and the left ventricle.the right ventricle and the left ventricle.

AArteries pump oxygen rich blood to your rteries pump oxygen rich blood to your body; body; aaway from heartway from heart

Veins carry waste filled blood back to the Veins carry waste filled blood back to the heart and then to the lungs, to be cleaned heart and then to the lungs, to be cleaned and sent back out the the body.and sent back out the the body.

TermsTerms

Red Blood Cells-Red Blood Cells- Carry oxygen & Carry oxygen & carbon dioxide to & carbon dioxide to & from the lungs. from the lungs. Produced in the Produced in the bone marrow.bone marrow.

White Blood Cells-White Blood Cells- Destroy bacteria Destroy bacteria and are produced and are produced in the spleen.in the spleen.

TermsTerms

Blood Platelets-Blood Platelets- Aid blood in clotting Aid blood in clotting to held stop bleeding.to held stop bleeding.

PlasmaPlasma- Liquid part of blood. About - Liquid part of blood. About 90% water90% water

Blood is made up of 45% cells and Blood is made up of 45% cells and 55% plasma55% plasma

REVIEWREVIEW

How is the circulatory system similar How is the circulatory system similar to a paper boy?to a paper boy?

How big is your heart and were is it How big is your heart and were is it located?located?

What blood vessel carries blood to What blood vessel carries blood to your cells, away from your heart?your cells, away from your heart?

What blood vessel carries blood What blood vessel carries blood back to your heart?back to your heart?

Review continued…Review continued…

Aid in blood clotting?Aid in blood clotting? Which blood cells carry oxygen and Which blood cells carry oxygen and

carbon dioxide to and from the lungs?carbon dioxide to and from the lungs? Which blood cells destroy bacteria and Which blood cells destroy bacteria and

where are these cells produced?where are these cells produced? What is the liquid part of blood called?What is the liquid part of blood called? Name 3 parts of the circulatory system.Name 3 parts of the circulatory system. Name 3 blood vessels.Name 3 blood vessels.

CapillariesCapillaries

Capillaries are extremely small Capillaries are extremely small vessels located within the tissues vessels located within the tissues of the body that transport blood of the body that transport blood from the from the arteriesarteries to the to the veinsveins. .