Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Schematic representation of an adult (fully developed) metanephridial system plus the pericard/heart complex of a polyplacophoran similar to that of a member of the genus Lepidochitona. Dorsal view of the left side. da, dorsal aorta; ed, efferent nephroduct; ha, heart atrium; hv, heart ventricle; k, kidney; pe, pericardium; rp, renopericardial duct; sp, sagittal plane; su, sites of ultrafiltration.
