click below
click below
Normal Size Small Size show me how
Anatomy/Physiology
Unit 1 Vocabulary
| Term | Definition |
|---|---|
| Anatomy | The study of internal and external and the physical relationships among body parts. |
| Physiology | The study of how living organisms perform their vital functions. |
| Homeostasis | The existence of a stable internal environment. |
| Autoregulation | Ability of an organ to maintain a constant blood flow despite changes in insertion. |
| Extrinsic Regulation | Homeostatic regulation which results from the activities of the nervous or endocrine system. |
| Receptor | Monitors the value of a variable (blood pressure) |
| Control Center | Establishes set point around which variable is maintained |
| Effector | Can change the value of a varibale |
| Negative Feedback | Helps maintain homeostasis and maintains variation within normal range. |
| Positive Feedback | Is not homeostasis. When deviation from normal value, the system responds by making the deviation even greater. |
| Anatomical Position | A person standing erect with feet forward, arms hanging at sides, & palms of hands facing forward. |
| Cranial | Of or relating to the skull or cranium |
| Posterior | In back lateral, away from midline |
| Anterior | In front of |
| Caudal | tail |
| Dorsal | In back lateral, away from midline |
| Ventral | In front of |
| Superior | Above |
| Proximal | Closer to trunk |
| Medial | Closer to midline |
| Lateral | Away from midline |
| Distal | Away from trunk |
| Inferior | Below |
| Frontal Plane | or Coronal Plane: Vertically from right to left & divides body into anterior and posterior parts |
| Transverse Plane | or Horizontal Plane: Parallel to the surface of the ground & divides the body into superior & inferior parts. |
| Sagital Plane | Vertically through body, separating it into left & right sides/parts |