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5th Sci Ch 3
Study Guide
| Question | Answer |
|---|---|
| circulatory system | transportation system of the body |
| digestive system | involved in removing wastes |
| Four components of blood | red blood cells, white blood cells, plasma and platelets |
| red blood cell | carries oxygen to the body |
| white blood cell | protects body from germs and other harmful things |
| plasma | 50% of the blood |
| platelet | helps form blood clots |
| Three types of blood vessels | artery, capillary, vein |
| artery | carries blood away from heart |
| capillary | smallest kind of blood vessel |
| vein | takes blood back to the heart |
| Four parts of the heart | left atrium, right atrium, left ventricle, right ventricle |
| circulatory system does what | transports blood to the whole body |
| respiratory system does what | carries gases between the outside air and your blood |
| The digestive system does what? | breaks down food so useful to the body |
| urinary system does what? | helps eliminate wastes |
| What is the first step of digestion? | chewing |
| what is the esophagus? | tube that carries food to the stomach |
| How are oxygen and carbon dioxide exchanged in the lungs? | inhaled oxygen moves from the lungs to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the lungs. |