click below
click below
Normal Size Small Size show me how
Human Physiology 1-6
This flashcard set includes essential terms and definitions from Weeks 1 to 6
| Term | Definition |
|---|---|
| Negative feedback loop | A process that reverses a change in the body to maintain balance. |
| Action potential | An electrical impulse that travels along a nerve cell. |
| Voltage-gated ion channel | A protein channel in the cell membrane that opens when electrical signals arrive. |
| Resting membrane potential | The electrical charge difference across the membrane of a resting cell. |
| Osmosis | Movement of water across a membrane from low to high concentration of solutes. |
| Sarcomere | The smallest contractile unit of a muscle fiber. |
| Enzyme | A protein that speeds up chemical reactions in the body. |
| Cardiac output | The amount of blood the heart pumps per minute. |
| Tidal volume | The volume of air inhaled or exhaled during normal breathing. |
| Synapse | The gap between two nerve cells where signals are transmitted. |