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The Circulatory System !!!!!. l?tracking=81347_A.

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Presentation on theme: "The Circulatory System !!!!!. l?tracking=81347_A."— Presentation transcript:

1 The Circulatory System !!!!!

2 l?tracking=81347_A

3 What is it? The organ system the circulates blood throughout the body What does circulate mean? To move or flow in a circle

4 Functions of The Circulatory System 1.Blood Cells carry energy/glucose (from food person eats) and Oxygen (that person breathes in) to cells all over the body 2. Blood takes Carbon Dioxide and other waste out of cells

5 We all know that oxygen is the key to living. It's in the air you breathe, in your lungs and in your blood. What you might not know is how oxygen gets into your blood and how the blood carries oxygen through your body.breatheyour body.

6 How does the oxygen get in the blood? You breathe air in through your nose and mouth. It then makes its way into your lungs. Oxygen then sticks to red blood cells as they pass through the lungs on their path throughout the body - now the oxygen is in the blood.

7 How does energy/glucose from food get into you blood? Glucose: is the main sugar found in blood, taken from the food we eat. Once almost fully digested, food moves through the intestines, the nutrients are absorbed through the walls of the intestines and put into the blood.


9 3 Parts of Circulatory System 1. Heart 2.Blood vessels 3. Blood

10 3 Parts of Circulatory System 1.The heart pumps the blood. 2.The blood vessels are tubes that carry blood. 3.The blood carries oxygen & nutrients to body cells.

11 HEART: Muscular organ that pumps blood all around the body. templatedata/imports/HTML/C RM/heart/interact_6.html Parts of the Circulatory System

12 The Heart The heart has 4 chambers (sections)


14 Remember Functions of Circulatory System? Blood carries Oxygen to parts of the body The lungs work with the heart to do this

15 Blood with oxygen in it is shown as red Blood without oxygen is shown as blue Red = blood has oxygen in it Blue= blood without oxygen

16 Blood Flow Visual ata/imports/HTML/CRM/heart/ ml

17 Blood Flow Steps Step 1. Blood returns to your heart from your body and lungs Oxygen-poor blood from your body flows into your right atrium. At the same time, oxygen-rich blood from your lungs flows into your left atrium.

18 Step 2. Blood flows from the upper to the lower chambers. –Blood flows from your right atrium into your right ventricle. –At the same time, blood flows from your left atrium into your left ventricle.

19 Step 3. Blood is pumped back out to your lungs and body. –Your right ventricle pumps blood out of your heart to your lungs, where the blood's oxygen supply is replenished. –At the same time, your left ventricle pumps blood — once again full of oxygen — out of your heart to your body. To lungs For oxygen To body



22 Blood Flow Poster Task: create a poster on 8x11 paper explaining how blood flows between the heart, lungs and body

23 Exit 1.Which of the following is not a function of the circulatory system? A.Take oxygen to cells B.Remove carbon dioxide from cells C.Take energy to cells D.Rake water to cells 2. Name the 1 of the 3 parts of the circulatory system

24 Thursday Warm Up 1.

25 Thursday

26 Textbook 66B for Heart Foldable 1.Label each chamber on the outside

27 BLOOD VESSELS: Blood travels through your body in hollow tubes called blood vessels. –There are 3 types of blood vessels: arteries, veins, capillaries Parts of the Circulatory System

28 Arteries A artery is a blood vessel that carries oxygenated blood away from the heart. Biggest type of blood vessel

29 Veins A blood vessel that carries blood back to the heart.

30 Capillaries A narrow blood vessel that connects arteries with veins.

31 BLOOD: Special tissue that carries important gases and nutrients to and from all parts of your body. –Made up of 3 different types of cells that sit in a liquid called plasma Parts of the Circulatory System

32 Plasma The liquid that makes up blood. Carries minerals and waste. About 60% of blood is plasma.

33 Red Blood Cells Blood cells that pick up oxygen and transport oxygen throughout the body. Hemoglobin is the compound that makes these cells red.

34 White Blood Cells Blood cells that help your body fight infections

35 Platelets Cell fragments that help to form clots when a blood vessel is damaged.

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