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Figure 5 | Frontiers in Zoology

Figure 5

From: Development of the excretory system in a polyplacophoran mollusc: stages in metanephridial system development

Figure 5

Stage of metanephridial system development in Lepidochitona corrugata with individual components differentiated (spm 7). A. Posterior part of specimen from dorsal with transparent external surface and plane (ortho slice) of section images shown in B–E. B. Total LM cross section through the anlagen of the metanephridial system with stippled rectangles indicating the position of details given in the TEM sections C–E. C. Extension of the anlage of heart and pericardium on left side forming the connection to the renopericardial duct. D. Left anlage of renopericardial duct (dorsal) and kidney (ventral). E. Left efferent nephroduct. aj, adhaerens junction; ci, cilia; dgl, digestive gland; ec, epidermal cell; f, foot; i, intestine; lap, lumen of the anlage of pericardium and heart; ld, lumen of the efferent duct with ciliation; lk, lumen of the kidney anlage with ciliation; lln, left lateral nerve cord; lr, lumen of the renopericardial duct anlage with ciliation; mi, mitochondria; mu, muscle fibers; nu, nucleus; rak, right anlage of renopericardial duct and kidney; r, rectum; rln, right lateral nerve cord; va, vacuole.

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