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Anatomy 7
exam 2, cavities
| Term | Definition |
|---|---|
| plane | imaginary flat surface that passes through body |
| section | the pieces made by the plane, 2 sections |
| sagittal plane | divides body into right and left sections |
| midsagittal plane | 2 equal halves of left and right |
| parasagittal | 2 unequal pieces of left and right |
| frontal/coronal plane | divides body into front (anterior) and back (posterior) |
| transverse/horizontal/cross-sectional plane | divides body by top (superior) and bottom (anterior) |
| oblique plane | a combination of the 2 planes (will never be this plane) |
| body cavities | spaces in body that help protect separate and support internal organs |
| cranial cavity (dorsal) | brain and spinal cord |
| meninges | layers of protective tissues that line the cranial cavity and vertebral canal |
| ventral body cavity | front of body, has thoracic cavity and abdominopelvic cavity |
| thoracic cavity | formed by ribs |
| pericardial cavity | fluid filled chamber that surrounds the heart |
| pleural cavity | 2 pleural cavities around the lungs |
| mediastinum | central portion of the thoracic cavity, btw pleural cavity, neck to diaphragm |
| abdominopelvic cavity | diaphragm to groin, divided into abdominal cavity and pelvic cavity |
| serous membrane | thin slippery membrane lines body cavities that don't open to the outside, parietal layer lines cavities walls and visceral covers in the cavities |
| parietal | on wall around organ |
| visceral | on organ |
| pleura | lungs |
| pericardium | heart |
| peritoneum | abdominal |