Also called the “afterbirth,” this vascular organ is attached to the uterus and provides nutrition and oxygen to the baby. The baby's waste products are also excreted through the placenta.

the organ that connects the fetus and the mother's uterus and enables the exchange of oxygen and nutrients.

an organ which attaches the fetus to the wall of the womb. It is bathed in maternal blood.

(L., a flat cake).

Organ which develops on the inner wall of the uterus and supplies the fetus with all its life-supporting requirements and carries waste products to the mother's system.

tissue formed from cells of the mother and fetus that forms an interface between the vascular systems of those two individuals.

A tube through which the developing fetus receives oxygen and nutrients from the mother and gets rid of waste products.

A structure attached to the wall of the uterus to nourish the fetus during pregnancy.

Also known as afterbirth, the placenta is a circular, flat organ that resembles a pancake, which connects the unborn baby to the uterus for oxygen, nutrients and elimination of waste products.

Placenta--Organ inside the uterus that is attached to the baby by the umbilical cord. Essential during pregnancy for growth and development of the embryo and fetus. Also called afterbirth. --See also afterbirth.

the structure, formed from both maternal uterine and fetal tissues, which nourishes a viviparous fetus

a vascularized organ in mammals that unites fetus to the mother's uterus, providing nourishment to and ridding the fetus of waste without direct contact between maternal and fetal blood.[close window

A temporary structure in the uterine wall that permits diffusion between the fetal and maternal circulatory systems; see afterbirth.

The vascular organ that is connected to the amniotic sac, which holds your baby. It's the source for nutrition and oxygen for your baby.

(afterbirth), the membrane attached to the inside of the uterus which takes nutrients from the mare's blood to the fetus through the umbilical cord.

Tissue that connect mother and fetus and provide nourishment to and takes away from the fetus

The structure that provides the fetus with nourishment during development. It is attached to the wall of the uterus and connects to the fetus through the umbilical cord.

The structure within the pregnant uterus that is the interface between the maternal and fetal bloodstreams. Oxygen, food substances, and other materials pass from the mother's bloodstream to the fetus's through the placenta. Many drugs cross the placenta to enter the fetal bloodstream.

The oval or discoid spongy structure in the uterus from which the fetus derives its nourishment and oxygen

A temporary organ that develops in the uterus during pregnancy. It provides nutrients for the fetus and eliminates its waste products.

The organized tissue in the uterus joining the fetus to the mother.

a vascular organ that is connected to the embryo by the umbilical cord and that is discharged shortly after birth; the structure serves to provide nourishment for and eliminate wastes from the fetus.

organ for nourishing embryo and removing waste products

In simple terms, a placenta is a tissue that forms to sustain embryonic plants or animals; however, there are many differences between the two. In plants, a placenta is found in those plants that retain the gametophyte generation and need to keep it fed during its development (Gymnosperms, cycads, angiosperms). The placenta is a tissue that the parent plant makes, the ovule is simply attached to it. In animals, a type of placenta can be found in those reptiles and amphibians that give birth to live young. Again, this tissue is generally made by the mother and is simply a means of cushioning the foetuses and providing them with food and oxygen. Placentas become most complex in mammals, where both the foetus and mother contribute to the tissue, and a highly complex mass of blood vessels, cushioning tissues and hormone secreting cells is built. The mother's blood supply and the blood of the foetus never come into contact, but they get close enough that food and oxygen can diffuse from the mother to the foetus, and waste materials can pass the other way to be excreted. The placenta is expelled by the mother shortly after giving birth.

the organ that unites the foetus with the mother's uterus. The placenta mediates metabolic exchanges, serving the functions of nutrition, respiration and excretion.

the temporary organ of pregnancy which exchanges oxygen, nutrients, and wastes between mother and fetus; afterbirth.

special structure through which exchange of materials between fetal and maternal circulations occurs; also called the afterbirth

(pluh-SEN-tah) Organ that nourishes the developing fetus in the uterus

A structure that develops in the uterus during pregnancy; filter through which the embryo gains nutrition from the mother.

Fleshy organ through which foetus receives oxygen and nutrients in the womb.

The circular, flat organ that connects the unborn baby, by way of the umbilical cord, to the uterus for oxygen, nutrient exchange and elimination of wastes; it's also known as the afterbirth

the structure that supplies the fetus with nourishment.

L. = a flat cake, from G. plax- = flat- ; (Ge. Mutterkuchen = "mother-cake" = placenta).

Spongy organ attached to the wall of the uterus through which nourishment and oxygen pass from the bloodstream of the mother into the bloodstream of the fetus through the umbilical cord.

(pla sen´ ta) [Gr. plax: flat surface] • The organ found in most mammals that provides for the nourishment of the fetus and elimination of the fetal waste products.

A round, flat organ in the uterus that exchanges oxygen and nutrients for the baby. This organ delivers after the baby and is commonly known as the "afterbirth."

Specialized disk-shaped organ that connects the fetus to the uterine wall for gas and nutrient exchange. Also called afterbirth.

The organ that connects the fetus to the mother. It delivers oxygen and nutrients to - and takes waste away from - the fetus during pregnancy. It is attached to the fetus by the umbilical cord and is expelled after birth.

The organ that develops in the uterus during pregnancy and links the blood supplies of mother and baby

The organ that allows communication of blood from mother to fetus in the uterus; also, referred to as Afterbirth.

vascular organ-like structure that develops in the uterus during pregnancy, serving to anchor the embryo or fetus after implantation. The placenta enables oxygen and nutrients to pass from the maternal blood to the embryo or fetus. It also eliminates carbon dioxide and waste products from the embryo or fetus by passing them to the mother, who excretes them through her liver, kidneys, or lungs.

a flattened circular spongy vascular organ in the uterus of pregnant mammals which helps to nourish the fetus, which is attached to it by the umbilical cord.

The organ formed in the lining of the womb to provide nourishment for the growing baby.

A structure that grows from the uterine wall that allows nutrients and oxygen from the mom to pass through the umbilical cord to the baby and waste products from the baby go back through the umbilical to the placenta.

the vascular structure in the uterus of most mammals providing oxygen and nutrients for and transferring wastes from the developing fetus

a separate organ in the womb that transfers oxygen and nutrients to a fetus

Latin = a flat, round cake.

Otherwise known as the afterbirth. It provides the baby with nutrients, oxygen and antibodies. It also removes the baby’s waste products.

organ that transfers nutrients and oxygen from the mother to the fetus and waste products from the fetus to the mother.

The membranes surrounding the fetus in the womb.

the organ through which a foetus gets food and oxygen in the womb

The structure in uterus through which the fetus receives nutrients.

It is the exchange and filtering system that develops between the mother and the fetus in the uterus, responsible for filtering oxygen and nourishment from the mother's blood to the fetus. Following the delivery of the baby the placenta is expelled from the uterus.

The placenta provides the connection between the mother and the developing foetus

The organ between the fetus and mother for nutrients and gaseous exchange.

pla-CEN-tah A specialized organ that connects a pregnant female placental mammal to unborn offspring. 216

an organ that joins a mother with her unborn baby and provides nourishment and sustenance.

also called the afterbirth, it is made up of blood vessels. It allows nutrients to pass from the mother through the umbilical cord to the baby.

The vascular organ lining the uterus which is produced during early pregnancy for the nourishment and protection of the developing fetus. It is attached to the fetus by the umbilical cord, from which oxygen and nutrients flow between the fetus and the mother. The placenta is expelled from the uterus after delivery of the baby.

organ that develops in the uterus during pregnancy to link the blood supplies of a pregnant woman and fetus to provide nutrients and remove waste products from the fetus.

Afterbirth - an organ which provides nutrients from the mother to foetus.

The organ that nourishes the developing fetus in the uterus.

Tissue that connects the mother to her fetus and provides nourishment to and takes away waste from the baby

Tissue that connects mother and fetus and provides nourishment to and takes away waste from the fetus.

flattened circular spongy vascular organ in uterus that helps to nourish the baby. The baby is attached to it by the umbilical cord.

this organ grows in the uterus during pregnancy and connects the blood supplies of the mother and baby.

An exchange station between mother and baby; nutrients and oxygen are supplied by the mother's blood to the baby, carbon dioxide and waste materials pass from the baby through the placenta to be eliminated by the mother; the fetal and maternal blood do not actually mix.

An organ produced from interlocking maternal and embryonic tissue in placental mammals; supplies nutrients to the embryo and fetus and removes wastes.

the organ that nourishes the fetus, supplies it with oxygen and removes its waste products.

An organ that is attached to the wall of the uterus to which the fetus is attached by an umbilical cord. Is a self contained unit which provides the infant with nutrition, oxygen, antibodies, and carries wastes away. When functioning properly it helps the baby mature and grow accordingly.

The thick pad of tissue in a pregnant woman's uterus that provides nourishment to and disposes waste from the growing fetus

the vascular organ that connects the fetus and the mother's uterus, through which metabolic exchange between the fetus and mother occurs. Some pathogenic organisms and maternal antibodies may be transferred across the placenta.

Tissue that connects the woman and fetus. It provides nourishment to the fetus and takes away wastes from the fetus.

An organ which develops in the uterus during pregnancy, providing nutrients for the fetus and eliminating its waste products.It is also referred to as the afterbirth because it's delivered after the baby in a vaginal birth.

A special lining that grows within the uterus during pregnancy to nourish the developing fetus. Sometimes called the afterbirth because it is expelled from the uterus a few hours after childbirth.

A pancake-shaped organ that develops in the uterus just 12 days after conception, providing nutrients for the fetus and eliminating its waste products. Commonly referred to as the afterbirth because it's delivered after the baby.

The organ of metabolic interchange between the fetus and mother. It is connected to the fetus by the umbilical cord and to the mother's circulation via an interface with the womb and is comprised of both embryonic and maternal tissues. The placenta prevents mixing of fetal and maternal blood but permits the exchange of oxygen, carbon dioxide, nutrients from the mother's blood, and secretes the hormones necessary for successful pregnancy.

The organ which joins the mother with her unborn baby in the womb. Acts as a barrier passing essential nutrients from mother to fetus and filters waste products back to the mother.

The tissue that connects the mother to the baby.

Fluid-filled sac which is the organ of metabolic interchange between the fetus and mother

the organ that forms from the blastocyst and attaches to the endometrium during an early stage of pregnancy; it nourishes the developing baby.

vascular organ, developed within the uterus of most mamals during gestation from the chorion of the embryo and a part of the maternal uterin wall

The spongy structure that develops in the uterus during pregnancy, through which the fetus derives nourishment.

This is the tissue which connects the mother and fetus that transports nourishment and takes away waste.

The endocrine organ that secretes hormones to the unborn child, providing nutrition, respiration, and secretions to the fetus.

The structure that binds the developing baby to the wall of the womb. It allows nutrients and waste to be exchanged.

The embryonic tissue that invades the uterine wall and provides a mechanism for exchanging the babys waste products for the mothers nutrients and oxygen. The baby is connected to the placenta by the umbilical cord.

Spongy uterine material through which the mother provides nourishment to the fetus. The placenta is discarded after delivery and referred to as the afterbirth.

the structure attaching the umbilical cord and the fetus to the wall of the uterus, through which the fetus obtains its nutrients and oxygen and through which its excretory products are transferred to the mother. The placenta also makes several hormones.

The tissue that contains the fetus during its development and connects the fetus to the dam.

the organ within the pregnant uterus by which the developing baby (embryo) is attached to the mother. It's most important function is to provide the embryo with nourishment, take away its waste and 'breath' for it.

Organ that grows in the womb during pregnancy. It connects the mother to the baby and transfers food and oxygen so the baby can develop. After birth, the placenta is pushed out of the womb.

Tissue that develops in the uterus during pregnancy to transfer nourishment and oxygen to the baby from the mother, and to take away the baby's waste matter.

placenta - a small round flat cake] The organ found in the uterus of pregnant mammals (and other viviparous species) composed of maternal and fetal tissues in close contact which provides nourishment and gaseous exchange for the fetus.

an organ, which develops with the fetus, that facilitates the exchange of oxygen and nutrients between mother and child

The fetal and maternal membranes that protect and nourish the unborn young of mammals. Nutrients, waste products, gases, and certain antibodies readily cross the placental barrier from mother to fetus.

organ that develops in the uterus during pregnancy; links the blood supplies of a pregnant woman to the fetus to provide nutrients and remove waste products.

A bag-like organ that partially surrounds the fetus during pregnancy. It delivers oxygen and nutrients to - and takes waste away from - the fetus during pregnancy. It is attached to the fetus by the umbilical cord and is expelled after birth.

A highly vascular organ on the inner wall of the uterus permitting exchange of gases and substances between mother and baby.

Organ within the uterus that allows passage of substances between mother and fetus, such as food and oxygen.

network of blood vessels and other tissues by which the unborn child is attached to the wall of the uterus

An organ attached to the fetus and to the inner wall of the uterus through which the fetus receives nutrients and oxygen and excretes waste.

The flat round organ attached to the uterine wall which nourishes the baby.

an organ in female mammals that envelops a fetus as it develops and is attached to it via an umbilical cord.

A pancake-shaped organ that develops in the uterus and provides nutrients and oxygen for the fetus and eliminates its waste products. The placenta attaches to the uterine wall. The baby is connected to the placenta with the umbilical cord. The expelling of the placenta after the baby is born is called the third stage of labor.

special tissue that joins the mother and fetus to provide hormones necessary for a successful pregnancy, and supplies the fetus with water and nutrients (food) from the mother's blood.

temporary organ joining the mother and unborn child (fetus). The placenta transfers oxygen and nutrients from the mother to the fetus, and permits the release of carbon dioxide and waste products from the fetus.

the spongy, vascular organ that supplies the baby with maternal blood and nutrients through the umbilical cord.

An internal organ providing nourishment to and removing waste products from the blood of an unborn young. The unborn young's blood is conveyed to the placenta via the umbilical cord.

Organ that develops inside the uterus of a pregnant woman. Supplies the food and oxygen to the fetus through the umbilical cord and is expelled after birth.

The organ through which the foetus is nourished. It also removes waste products.

The organ that nourishes the fetus while it is in the womb, and that also produces hormones responsible for many of the changes in the mother's body during pregnancy.

The vascular structure developed in pregnancy through which nutrition and excretion takes place between mother and baby.

Flattened, round mass of spongy tissue that contains a lot of blood vessels. It attaches to the inside of the uterine wall and carries food and oxygen to the fetus, and carries wastes away from the fetus.

The special tissue that joins the mother and the fetus in the womb. It provides hormones necessary for a successful pregnancy, and supplies the fetus with water and nutrients (food) from the mothers blood.

Circulatory organ that develops during pregnancy to which the umbilical cord of the fetus is attached.

The organ surrounding the fetus through which it derives nourishment (develops from the fertilized ovum).

n. In mammals, a tissue formed within the uterus through which nutrients are passed from the mother to the embryo (and later the fetus) and its wastes are removed; placental- n. (adj.) A mammal whose young form a placenta as they develop in the mother's uterus.

an organ that develops in the uterus during pregnancy. Its purpose is to nourish the baby. The placenta passes oxygen and nutrients from the mother to the baby, and takes waste products away back to the mother's blood.

a specialized embryonic organ attached to the uterus wall, by which embryos of viviparous species are nourished and waste products removed; the placenta is derived from the same membranes that surround the embryos in the amniote egg of reptiles, birds, and monotreme mammals

A membranous organ that develops during pregnancy. It lines the uterine wall, partially envelopes the fetus, and is attached to the umbilical cord. The placenta exchanges nutrients, wastes, and gases between maternal and fetal blood. Substances ingested by the mother during pregnancy pass through the placenta to the fetus.

The embryonic tissue that implants in uterine wall and provides a mechanism for exchanging the baby's carbon dioxide and waste products for the mother's nutrients and oxygen. The baby is connected to the placenta by the umbilical cord.

Organ inside the uterus that is attached to the fetus by the umbilical cord. It provides nourishment to the fetus and takes waste from the fetus.

Support organ formed by cells from both blastocyst and uterine lining; serves as exchange site for oxygen, nutrients, and waste products.

A spongy structure that grows on the uterine wall during pregnancy and provides nutrition to the foetus.

system of blood vessels that mature from fetal cells or from the maternal uterine. The mother's nutrients are carried into the baby's blood. Also carries waste out of the babies blood.

The structure through which the fetus receives nourishment and oxygen during gestation.

(afterbirth) the flat circular vascular structure within the pregnant uterus that provides nourishment to and eliminates wastes from the developing embryo and fetus: expelled after the baby is born

an organ, shaped like a flat cake, that only grows during pregnancy and provides a metabolic interchange between the fetus and mother. (The fetus takes in oxygen, food, and other substances and eliminates carbon dioxide and other wastes.)

A membranous vascular organ that develops in female mammals during pregnancy, lining the uterine wall and partially enveloping the fetus, to which it is attached by the umbilical cord. Following birth, the placenta is expelled..

The placenta is an ephemeral (temporary) organ present in female placental vertebrates during gestation (pregnancy), but a placenta has evolved independently also in other animals as well, for instance scorpions and velvet worms.

An ovule-bearing surface.

a. (L. placenta, flat cake) the part of the ovary from which the ovules arise. It generally occupies the whole or a portion of an angle of a cell.

that part of the ovary of a flowering plant where the ovules form

Structure or area to which ovules are attached in an ovary, variously shaped and positioned.

in flowering plants, the tissue in the ovary chamber bearing the ovules

the part of the ovary to which the ovules are attached.

Region of attachment of seeds on inner fruit wall.

a region, within an ovary, to which ovules are attached.