fetal membrane
Noun: 1. A protective and functional membrane surrounding a developing fetus: A fetal membrane is any membrane that forms during pregnancy and serves essential functions for the developing fetus, such as protection, nourishment, respiration, or excretion.
The term "fetal membrane" is a biological and medical term used to describe the specialized tissues that enclose and support the embryo and fetus during gestation. It is typically used in scientific, educational, and clinical contexts.
- Noun:
- The doctor explained the role of the fetal membrane in nutrient exchange.
- A rupture of the fetal membrane is a key event signaling the onset of labor.
- Researchers studied the properties of different fetal membranes.
- "Extraembryonic membrane": This is a more precise synonym often used in embryology to describe membranes like the amnion and chorion, which are derived from the zygote but are not part of the embryo's body.
- The amnion is an extraembryonic membrane that forms the amniotic sac.
- Amnion (noun): The innermost fetal membrane that forms a fluid-filled sac (amniotic sac) protecting the embryo.
- Chorion (noun): The outermost fetal membrane that, along with maternal tissue, forms the placenta.
- Allantois (noun): A fetal membrane involved in early fluid exchange and waste removal; in humans, it becomes part of the umbilical cord.
- Yolk sac (noun): A fetal membrane that provides early nourishment and is the source of the first blood cells.
- Extraembryonic membrane
- Embryonic membrane (though "fetal" is more accurate for later stages of development)
The term "fetal membrane" is a collective or categorical term. In human development, it most commonly refers to the amnion and the chorion, which are the primary membranes. The specific functions (protection, nourishment, etc.) are distributed among these different membranes.
- any membrane that functions for the protection or nourishment or respiration or excretion of a developing fetus