Synovial fluid is considered an ultrafiltrate of:

# In relation to TMJ, synovial fluid is considered an ultrafiltrate of:
A. Serum
B. Platelets
C. Plasma
D. Lymph

The correct answer is C. Plasma. 

In relation to TMJ, synovial fluid is considered an ultrafiltrate of plasma. 

Total protein content is less compared to plasma but relatively there is higher albumin and less proportion of gamma globulin.

Usually, less than 2 ml of fluid is present in each healthy TMJ. 

It contains higher amounts of hyaluronic acid. It increases the viscosity of the fluid and helps in its function as a shock absorber. 

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