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Intro A&P CH1
positions
| Question | Answer |
|---|---|
| Structural Levels of Organization | Atoms, Cells, Tissues, Organs, Systems |
| Atoms | Composed of Protons, Electrons & Neutrons which is the chemical level |
| Cells | Smallest structural units - orgainzations of various chemicals |
| Tissues | organizations of similar cells |
| Organs | Organizations of different kinds of tissues |
| Systems | Organizations of many different kinds of organs |
| Anatomical Position | Standing erect with arms at sides & palms faced forward. |
| Anatomical Directional Terms | Superior InferiorAnterior PosteriorVentral DorsalMedial LateralProximal DistalSuperficial Deep |
| Superior | Toward the head |
| Inferior | Toward the feet, lower, below |
| Anterior | Front, in front of |
| Posterior | Back, in back of |
| Medial | Toward the midline |
| Lateral | Toward the side |
| Proximal | Toward or nearest the trunk, or nearest the point of origin of a structure |
| Distal | Away from or farthest from the trunk, farthest from a structures point of origin. |
| Superficial | Near the body surface |
| Deep | Farther away from the body surface |
| Planes of Section | Sagittal, Midsagittal, Frontal & Transverse |
| Sagittal | Lengthwise - divides structure into LEFT & RIGHT sections. |
| Midsagittal | Divides into 2 EQUAL halves |
| Frontal | Lenghtwise divides into anterior (front) & posterior(back)sections |
| Transverse | Horizontal plane dividing into UPPER & LOWER sections |
| 2 Major cavities | Dorsal & Ventral |