organism_________________
multicellular structure__|
                         organ system
                          |__circulatory system  5438 rec.
                              |__adult circulatory system 2187 rec.
                              |   |__adult dorsal vessel(+) 2040 rec.
                              |   |__adult hemocoel 2 rec.
                              |   |__adult hemocyte(+) 75 rec.
                              |   |__adult hemolymph(+) 88 rec.
                              |   |__pulsatile organ(+) 9 rec.
                              |__dorsal vessel 2864 rec.
                              |   |__adult dorsal vessel(+) 2040 rec.
                              |   |__cardial cell(+) 157 rec.
                              |   |__embryonic/larval dorsal vessel(+) 639 rec.
                              |   |__intracardial valve(+) 7 rec.
                              |   |__ostium(+) 67 rec.
                              |   |__pericardial cell(+) 588 rec.
                              |__embryonic dorsal vessel 72 rec.
                              |__hemocoel 21 rec.
                              |   |__adult hemocoel 2 rec.
                              |   |__embryonic hemocoel
                              |   |__embryonic/larval hemocoel 19 rec.
                              |__hemocyte 1890 rec.
                              |   |__adult hemocyte(+) 75 rec.
                              |   |__circulating hemocyte(+) 1 rec.
                              |   |__crystal cell(+) 597 rec.
                              |   |__embryonic/larval hemocyte(+) 1631 rec.
                              |   |__lymph gland derived hemocyte(+) 24 rec.
                              |   |__plasmatocyte(+) 585 rec.
                              |   |__sessile hemocyte(+) 23 rec.
                              |__hemolymph 199 rec.
                              |   |__adult hemolymph(+) 88 rec.
                              |   |__circulating hemocyte(+) 1 rec.
                              |   |__embryonic/larval hemolymph(+) 95 rec.
                              |__larval circulatory system 2889 rec.
                              |   |__alary cell 4 rec.
                              |   |__embryonic/larval dorsal vessel(+) 639 rec.
                              |   |__embryonic/larval heart anchoring cell 13 rec.
                              |   |__embryonic/larval hemocoel 19 rec.
                              |   |__embryonic/larval hemocyte(+) 1631 rec.
                              |   |__embryonic/larval hemolymph(+) 95 rec.
                              |   |__embryonic/larval lymph gland(+) 752 rec.
                              |   |__larval pericardial cell 277 rec.
                              |   |__periligament cell 7 rec.
                              |__melanotic mass 433 rec.