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Body MedTerm
Planes, quadrants, regions, directional/positional terms, cavities
| Term | Definition |
|---|---|
| coronal/frontal plane | slices the body into front and back |
| sagittal/longitudinal plane; median plane | slices the body into left and right |
| parasagittal line | half of the median plane on both sides of the body; slices near the medial part of the armpit down to the middle of the foot |
| RUQ (right upper quadrant) contains: | liver, right lobe, gallbladder, bile duct, transverse colon (cut), and ascending colon |
| LUQ (left upper quadrant) contains: | left lobe, stomach (cut) spleen, duodenum, pancreas, pancreatic duct, and descending colon |
| RLQ (right lower quadrant) contains: | cecum, vermiform appendix |
| LLQ (left lower quadrant) contains: | small intestine, rectum, anus |
| Right Hypochondriac region | top right (patient's view) of the body regions |
| Left Hypochondriac region | top left (patient's view) of the body regions |
| Right Lumbar region | middle right (patient's view) of the body regions |
| Left lumbar region | middle left (patient's view) of the body regions |
| Right inguinal/iliac region | bottom right (patient's view) of the body regions |
| Left inguinal/iliac region | bottom left (patient's view) of the body regions |
| Epigastric region | top middle region |
| Umbilical region | center region |
| Hypogastric (pubic) region | bottom middle region |
| Cranial | towards the head |
| caudal | towards the feet |
| anterior/ventral | towards the front |
| posterior/dorsal | towards the back |
| Superior | above |
| Inferior | below |
| medial | towards median plane |
| proximal | towards the body attachment site |
| distal | away from body attachment site |
| lateral | away from median plane |
| cranial cavity | the brain, skull |
| dorsal cavity | the back side |
| spinal cavity | vertebrae and spine |
| thoracic cavity | the chest |
| abdominal cavity | abdomen |
| pelvic cavity | below abdominal cavity; pelvis |
| abdominal-pelvic | includes both abdomen and pelvic cavities |
| ventral cavity | front side |