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Unit 7
Key Terms in body structure and function
| Question | Answer |
|---|---|
| Artery | A blood vessel that carries blood away from the heart |
| Capillary | A tiny blood vessel; food, oxygen, and other substances pass from the capillaries to the cells |
| Cell | The basic unit of body structure |
| Digestion | The process of physically and chemically breaking down food so that it can be absorbed for use by the cells |
| Hemoglobin | The substance in red blood cells that carries oxygen and gives blood its color |
| Hormone | A chemical substance secreted by the glands into the bloodstream |
| Immunity | Protection against a disease or condition; the person will not get or be affected by the disease |
| Menstruation | The process in which the lining of the uterus breaks up and is discharged from the body through the vagina |
| Metabolism | The burning of food for heat and energy by the cells |
| Organ | Groups of tissue with the same function |
| Peristalsis | Involuntary muscle contractions in the digestive system that move food through the alimentary canal |
| Respiration | The process of supplying the cells with oxygen and removing carbon dioxide from them |
| System | Organs that work together to perform special functions |
| Tissue | A group of cells with similar functions |
| Vein | A blood vessel that carries blood back to the heart |
Created by:
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