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Answer ONE of the following questions. The information that is not related to the questions asked will not be graded. Describe the positional system of numbers used by the Sumerians and compare it with the system of numbers that we use nowadays.  Did the ancient Egyptians use the same system of numbers that the Sumerian use?   Compare   these system of numbers,  pointing out to similarities and differences.   2. When did the  Sumerian  civilization flourish?  Do we have original documents that shed light on  the  Sumerian life and culture?  Which system of numbers did the Sumerian use?   Was their system positional or additive? It is true that the Sumerian knew how to solve quadratic equations? Explain. 3. When did a civilization in ancient  Greece develop?    What are the main known fact about the history of ancient Greece?  Do we have original documents from that period?   How did  Greeks wrote their numbers for everyday purposes?  Was their system of numbers positional or additive? 

What is the primary purpose of the blood-brain barrier?

What type of test is used to specifically identify Cryptococcus neoformans in CSF?

What are the common classifications of joint disorders related to synovial fluid analysis?

When performing sperm morphology analysis, the minimum number of sperm that should be evaluated is: 200

Which finding in CSF might indicate a viral infection?

Describe the importance of crystal analysis in the evaluation of joint disorders.

In cases of bacterial meningitis, what is the expected result for CSF glucose levels compared to plasma glucose?

What CSF parameter is typically evaluated to assess the integrity of the blood-brain barrier?

What tests are routinely performed on synovial fluid, and what is their clinical relevance?