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Figure 4


Fig. 4. Pattern of pressure change in the pubic sac during a contractile event. Two examples of the types of pressure changes recorded from lymph sacs. The first event illustrates a `decrease only' pattern while the second event illustrates the more common `biphasic' increase/decrease pressure pattern. Pressure before (Ppre) and following (Ppost) the pressure event (shaded area; {Delta}P) are shown (see text).





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