ch 01, planes, body cavities, medical imaging.txt

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ch 01, planes, body cavities, medical imaging.txt
2010-09-03 16:37:21

ch 01, planes, body cavities, medical imaging
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  1. anterior/posterior
    front of the body/back of the body
  2. sagittal
    vertical line dividing body into right and left sides
  3. frontal (coronal)
    vertical line dividing body into front and back sides
  4. transverse (cross-sectional)
    horizontal line dividing body into superior and inferior portions
  5. cranial cavity
    formed by cranial bones, contains brain. protective tissue lining this is the meninges
  6. thoracic cavity
    chest cavity, contains pleural and pericardial cavities and mediastinum
  7. abdominal cavity
    contains stomach, spleen, lilver, gallbladder, small intestine and most of the large intestine, the serous membrane of this cavity is the peritoneum
  8. pelvic cavity
    contains urinary bladder, portions of large intestine and internal organs
  9. pleural cavity
    fluid filled space surround each of the lungs, the serous membrane of this is the pleura
  10. pericardial
    fluid filled space that surrounds the heart, the serous membrane is the pericardium
  11. peritoneum
    serous membrane of the abdominal cavity
  12. medastinum
    anatomic region in central portion of the thoracic cavity b/w medial walls of pleural cavities, contains the structures in thoracic cavity except for lungs (ie: heart, thymus, esophagus, trachea and blood vessels)
  13. diaphragm
    dome shaped muscle separating the thoracic cavity from the abdominopelvic cavity
  14. parietal layer
    lines the walls of the cavities
  15. visceral layer
    covers the viscera within the cavities
  16. oral cavity
    mouth and teeth
  17. nasal cavity
  18. orbital cavity
  19. middle ear cavity
    small bones of the middle ear
  20. synovial cavity
  21. x-rays
    produce image of interior structure, do not pass easily through bone, useful for soft tissue at low dose (ie: breast-mammogram, bone densitometry)
  22. MRI (magnetic resonance imaging)
    High energy magnetic field - protons in body align with field, color image appears on video monitor. Used for differentiating NORMAL from ABNORMAL tissues (ie: tumors, brain abnormalities, blood flow)
  23. CT-Scan (Computed Tomography)
    3-D structures to visualize soft tissue in more detail than x-ray, tissue intensities showing different degrees of gray. Whole body CT-scans are performed (ie: lung and kidney cancers, coronary artery disease)
  24. Ultrasound Scanning
    High freq. sound waves, painless, noninvasive, no dies. Performed during pregnancy to view fetus
  25. Scopes
    Video of inside of the body. endoscope is the instrument used with lens (ie: colonoscopy = interior of colon, laparoscopy = organs of abdominopelvic cavity, arthroscopy = interior of the joint)