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Isabella Rosales
Anatomy Weeks 1-5
| Term | Definition |
|---|---|
| Anatomy | The study of the structure and relationships among body parts. |
| Physiology | The study of the functions of body structures, how they work. |
| Chemical Bond | The force that holds atoms together in molecules (e.g. covalent, ionic bonds). |
| Cell Membrane (Plasma Membrane) | The selectively permeable barrier that regulates what enters and exits the cell; composed of a lipid bilayer with embedded proteins. |
| Osmosis | The diffusion of water across a selectively permeable membrane, from an area of lower solute concentration to an area of higher solute concentration. |
| Mitochondria | Organelles known as the “powerhouses” of the cell; they generate ATP through cellular respiration. |
| Lysosomes | Membrane-bound organelles that contain digestive enzymes to break down waste and cellular debris. |
| Ribosomes | Small structures (either free or attached to ER) where protein synthesis occurs. |
| Muscle Tissue | A tissue specialized for contraction; includes skeletal, cardiac, and smooth muscle types. |
| Nucleus | The control center of the cell that contains DNA and regulates gene expression and cell activity. |
| DNA | The molecule that stores genetic information used in growth, development, and cellular function. |