What are the three classes of ribs?
1. True (vertebrosternal) ribs, which include the upper ribs (1-7), all of which are directly attached to the sternum.
2. False (vertebrochondral) ribs, which include ribs 8, 9, and 10, and are attached to the sternum through cartilage.
3. Floating (vertebral) ribs (ribs 11 and 12), which articulate only with the vertebral column.
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What is the most common type of reaction in blood donors?
a. Varicose b. Variolar c. Vasospasm d. Vasovagal
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The wavelength in nanometers at peak transmittance is termed:
A. Spectral bandwidth. B. Stray light. C. Nominal wavelength. D. Electromagnetic spectrum.
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