1. The decidual reaction and decidua are not required for implantation. 2. A thin decidua can also be a contributing factor to such trophoblastic invasion. 3. Endometrium on the opposite side to the decidua basalis is the decidua parietalis. 4. Endometrium on the opposite side to the decidua basalis is the decidua parietalis. 5. However, the decidual cells make up a new layer, the decidua . 6. The compacta and spongiosa layers are still observable beneath the decidua in pregnancy. 7. Scrublands are dominated by ber and kair ( " Capparis decidua " ). 8. Ectopic decidua most commonly occurs the ovary, cervix and serosal lining of the uterus. 9. The decidua becomes part of the placenta; it provides support and protection for the gestation. 10. The site of the ancient town was overgrown with " Capparis decidua " bushes.