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Physiology Week 7
WEEK 7 PHYSIOLOGY
| Term | Definition |
|---|---|
| Anatomical position | Body erect, or standing posture with the arms at the sides and palms turned forward |
| Homeostasis | Relatively constant states maintained by the body |
| Integumentary System | Separates internal environment from external environment, providing stability of internal fluid volume |
| Skeletal System | Supports and protects internal environment, allowing movement; stores minerals that can be moved into and out of internal fluid |
| Muscular System | Powers and directs movements; provides heat |
| Nervous System | Regulates homeostatic mechanisms, sensing changes, integrating information, sending signals to effectors |
| Endocrine System | Regulates homeostasis by secreting signaling hormones that travel through internal environment to effector cells |
| Cardiovascular System | Maintains internal constancy by transporting nutrients, water, oxygen, hormones, wastes, and other materials and heat within the internal environment |
| Immune System | Defends internal environment against harmful agents |
| Effectors | Are organs such as muscles or glands that directly influence controlled physiological variables. |