| A | B |
|---|
| The openings in the skin through which sweat and oil move to the skin's surface. | pores |
| The body system that rids the body of harmful wastes produced by the cells. | excretory system |
| The muscular part of the body that pushes blood through the blood vessels. | heart |
| The excretory body parts that clean and filter the blood. | kidneys |
| Throbbing caused by blood rushing into the arteries each time the ventricles contract. | pulse |
| The upper chamber of the heart that receives blood | an atrium |
| Cells that carry oxygen from the lungs to body cells. | red blood cells |
| The heart, the blood vessels, and the blood make up the _____________. | circulatory system |
| The English doctor who in 1628 demonstrated that the heart pumps blood in a circle around the body. | William Harvey |
| A lower chamber of the heart that pumps blood out of the heart. | ventricle |
| Blood vessels that connect the other two types of vessels. | capillaries |
| blood vessels that carry blood to the heart | veins |
| Blood vessels that carry blood away from the heart | arteries |
| A decrease in this causes blood to collect in an airplane pilot's brain. | G's |
| These help keep a healthy balance of salt and water in the body. | kidneys |
| Blood is a tissue made up of several types of cells and a liquid called _________. | plasma |
| This helps to cool down our bodies. | sweat |
| A person who is a match to someone who needs blood can be a _____________. | blood donor |
| The kidneys can be harmed by having too little of this in the body. | water |
| Each half of the heat has an atrium that receives _______. | blood |
| The left and right atriums pump blood into these. | left and right ventricles |
| What do veins carry to the left side of the heart? | blood with oxygen |
| Where does the heart pump to, where the blood can pick up oxygen? | the lungs |
| The left side of the heart pumps oxygen -rich blood to the body's ____________. | arteries |
