A conceptus (from Latin: concipere, to conceive) is an embryo and its appendages (adnexa), the associated membranes, placenta, and umbilical cord; the products of conception[1] or, more broadly, "the product of conception at any point between fertilization and birth."[2] The conceptus includes all structures that develop from the zygote, both embryonic and extraembryonic. It includes the embryo as well as the embryonic part of the placenta and its associated membranes: amnion, chorion (gestational sac), and yolk sac.[3]
^"Conceptus". Retrieved 13 March 2022.
^The American Heritage Dictionary of the English Language (2011), 5th ed., p. 381.
^"Linked from conceptus" (PDF). Retrieved 13 March 2022.
sac. "Conceptus". Retrieved 13 March 2022. The American Heritage Dictionary of the English Language (2011), 5th ed., p. 381. "Linked from conceptus" (PDF)...
implantation, the developing embryo is sometimes termed as a preimplantation-conceptus. This stage has also been referred to as the pre-embryo in legal discourses...
Perendale rams, feeding to approximate a conceptus-free live mass gain of 0.15 kg/day (i.e. in addition to conceptus mass), commencing 13 days after the midpoint...
The fetal membranes are four of six accessory organs developed by the conceptus that are not part of the embryo itself, the other two are the placenta...
reference to a fetal heartbeat is medically inaccurate and misleading, for a conceptus is not called a fetus until eight weeks after fertilization, as well as...
and other studies. It was developed by Conceptus Inc. and approved for use in the United States in 2002. Conceptus was acquired by Bayer AG of Germany in...
AJ, Baird DD, Weinberg CR (10 June 1999). "Time of implantation of the conceptus and loss of pregnancy". The New England Journal of Medicine. 340 (23):...
is sometimes known as the pre-implantation embryo or pre-implantation conceptus. Sometimes this is called the pre-embryo a term employed to differentiate...
Day; Weinberg, Clarice R. (1999-06-10). "Time of Implantation of the Conceptus and Loss of Pregnancy". New England Journal of Medicine. 340 (23): 1796–1799...
J. L.; Roberts, R. M.; Sharp, D. D.; Thatcher, W. W. (1986). "Role of conceptus secretory products in establishment of pregnancy". J. Reprod. Fertil....
"conception" refers variably to either fertilization or to formation of the conceptus after its implantation in the uterus, and this terminology is controversial...
the Catholic Church 405. Council of Trent (Sess. VI, cap. i and v). De conceptu virginali, xxvi. "Catholic Encyclopedia: Original Sin". New Advent. Retrieved...
to maximise the number of children. A hydatidiform mole is a pregnancy/conceptus in which the placenta contains grapelike vesicles (small sacs) that are...
a cellular level, as they are from the same source, the egg and sperm conceptus. They also assert that the newborn and the placenta exist within the same...
"rescued" by the presence of human chorionic gonadotropin (hCG) from the conceptus. However, after the 8th week, production of progesterone shifts to the...
1800s: Susceptibility to teratogenesis depends on the genotype of the conceptus and the manner in which this interacts with adverse environmental factors...
structure filled with clear fluid that forms part of a developing amniote's conceptus (which consists of all embryonic and extraembryonic tissues). It helps...
chorionic cavity) that constitutes the gestational sac is a portion of the conceptus consisting of a cavity between Heuser's membrane and the trophoblast....
Catholic Church – IntraText". Vatican.va. Retrieved 24 January 2017. De conceptu virginali, xxvi "Catechism of the Catholic Church – IntraText". Vatican...
basic WHO definition of fetal death is the intrauterine death of any conceptus at any time during pregnancy. However, for practical purposes, legal definitions...
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