Voynich's anatomy

[ololololo]

   
On the next page, from the diagram of urine formation (or urination, or something else), on f79v, we can see an analogue — the act of defecation/digestion. 
At the top — the mouth. The reservoir under the lady with the cross is visually similar to a liver. The tubesmay refer to the intestines, but there’s a discrepancy with f77v, where it’s depicted as a single pipe rather than several. Also, the tubes are oriented upwards, although, in theory, they should be arranged in a snake‑like pattern.