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introduction a & p
anatomy
| Question | Answer |
|---|---|
| Negitive feedback | stimulus produces a response that OPPOSES OR STOPS original stimulus (temp.,blood sugar, most systems) |
| Positive feedback | stimulus produces a response that INCREASES OR ENHANCES original stimulus (childbirth, blood clotting) |
| Dynamic Equilibrium | body is continually adapting and adjusting (meds -> side effects) |
| Receptor | senses a change in a particular stimulus |
| Control system | receives and processes info from receptor ,directs change |
| Effector | responds to command, can oppose or enhance stimulus |
| Homeostasis | maintain a stable internal environment (body does not fuction in normal limits organ systems malfuction) |
| Nervous | reacts quicker specific (phone call) |
| Endocrine | reacts slower, wide lasts long (mail 1000 post cards) |
| autoregulation | cell system adjusts its activities automatically |
| extrinsic regulation | nervous or endocrine system causes change in activities |