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HHS Body Structure
Key Terms
| Question | Answer |
|---|---|
| Chromatin | Structural component of the nucleus, composed of nucleic acids and proteins |
| Chromosome | Threadlike structures within the nucleus composed of a deoxyribonucleic acid (DNA) molecule that carries hereditary information encoded in genes. |
| cytoplasm | Jellylike substance found within the cell membrane composed of proteins, salts, water, dissolved gases, and nutrients |
| Deoxyribonucleic acid (DNA) | Molecule that holds genetic information capable of replicating and producing an exact copy whenever the cell divides |
| diaphragm | muscular wall that divides the thoracic cavity from the abdominopelvic cavity |
| metabolism | sum of all physical and chemical changes that take place in a cell or an organism |
| organelle | cellular structure that provides a specialized function |
| pathology | Study of the nature of diseases, their causes, development, and consequences |
| peristalsis | Rhythmic contraction and relaxation of the walls of a tubular organ to propel its contents onward. |