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Fig. 3. A diagram of the model of the giraffe cranial circulation used. P1, P2, P3,
P4, P5, P6 were sites of pressure measurement. R1, R2, R3 and R4 were sites
where external pressure could be applied using a sphygmomanometer. A submerged
pump and/or jugular limb extension tube was used to generate flow through the
system. The jugular tube terminated outside the bath to allow for siphon
operation, and bath water level was maintained with a valve-controlled
constant inflow.
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