| A | B |
|---|
| Why can't the circulatory system miss any cells when delivering, food, oxygen, and water? | The missed cell would die. |
| What does the circulatory system do with the waste products from the cells? | The wastes are carried to other parts of the body and then removed. |
| What would happen if the circulatory system did not pick up wastes from some of the cells in the body? | The wastes will build up and possibly kill the cells. |
| What is the Circulatory System? | The system in the body that delivers food, water, and oxygen and removes wastes from the body cells. |
| Why does a person gets red in the face when they run a lot? | The blood is close to the surface, trying to help cool off the body. |
| Why do your hands get lighter colored when they are cold? | The blood is farther away from surface, trying to save heat for the body. |
| Why is it important to wear the right kind of clothes for the weather? | To help the circulatory system keep the right body temperature. |
| If a person is not feeling well, how can (s)he get better without taking medicine? | The circulatory system will fight off infections and disease. |
| heart | has four chambers |
| The heart's upper chambers are called... | atria |
| The heart's lower chambers are called ... | ventricles |
| The doors between the heart chambers are called ... | valves |
| What are blood vessels? | Tubes that carry the blood around the body |
| How many kinds of blood vessels are there? | three |
| Three kinds of blood vessels | arteries, capillaries, veins |
| Job of the arteries | Carries blood away from the heart. |
| Job of the capillaries | connects the arteries and veins |
| The body needs veins because ... | they carry blood back to the heart. |
| Where are the largest arteries are found in the body? | Near the heart |
| Blood is controlled in the veins | Valves |
| How much blood does an adult have? | five to six liters |
| 50% of your blood is ... | plasma |
| 90% of your plasma is ... | water |
| Plasma carries this to the cells in your body. | dissolved food |
| Plasma carries this away from the body cells. | wastes |
| What are the three things found in plasma? | red blood cells, white blood cells, platelets |
| 48% of your blood is | red blood cells |
| What do red blood cells carry to the body's cells? | oxygen |
| What do red blood cells pick up from the cells? | carbon dioxide |
| Where is red blood cells made? | in the bone marrow |
| What special protein makes your blood red when it combines with oxygen? | hemoglobin |
| What do white blood cells destroy in the body? | germs |
| What do white blood cells make to fight off diseases? | antibodies |
| What do platelets help blood to do? | clot |
| What special protein does platelets use to help stop bleeding? | fibrin |
| Blood travels through the pulmonary arteries to the ... | lungs |
| They carry blood back to the left side of the heart | Pulmonary veins |
| Blood returning from the lungs enters here | Left Atrium |
| The force of the blood that is put on the walls of the arteries. | blood pressure |
| When arteries expand and contract | pulse or heart rate |
| What kind of muscle make up the heart? | cardiac |
