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Directional Terms
Directional Terminology
| Term | Definition |
|---|---|
| Anterior | the front or forward part of a structure or the body. |
| Posterior | at or toward the back of something |
| Superior | higher in position, greater in quality or importance, or showing an attitude of being better than others |
| Inferior | lower in position, rank, quality, or value than something else |
| Medial | relating to the middle or situated closer to the midline of a body or structure |
| Lateral | relating to the side, as in a sideways direction or position, and can also refer to sideways movement |
| Proximal | nearer to the center of the body or the point of origin |
| Distal | located away from a specific point of reference, such as the center of the body, the median line, or the point of attachment of a limb |
| Coronal/Frontal plane | an imaginary vertical plane that divides the human body into anterior (front) and posterior (back) sections |
| Sagittal plane | a vertical anatomical plane that divides the body into left and right sections |
| Axial /Transverse plane | an imaginary plane that divides the body into upper (superior) and lower (inferior) sections |
| Dorsal Cavity | The dorsal cavity is located in the posterior (back) part of the body. |
| Ventral Cavity | A directional term meaning toward the front of the body. |
| Cranial Cavity | The cranial cavity is the space within the skull that houses the brain. |
| Vertebral Cavity | Spinal |
| Thoracic Cavity | respiratory (lungs, trachea), cardiovascular (heart, great vessels), immune (thymus), and digestive (esophagus) systems |
| Pelvic Cavity | bladder, distal colon, rectum, ureters, and in females, the uterus, fallopian tubes, and ovaries |
| Abdominal Cavity | stomach, small and large intestines, liver, gallbladder, pancreas) and the urinary system (kidneys, ureters) |