define amniote
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- amniote definition: nounAny of numerous vertebrates of the group Amniota, characteristically having an amnion during embryonic development and including the reptiles, birds, and mammals.Origin of amniote From New Latin amniōta amniotes from ...
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Amniote Definition and traits They are defined by embryonic development that includes the formation of several extensive membranes, the amnion, chorion, and allantois. Amniotes develop directly into a (typically) terrestrial form with limbs and a thick stratified epithelium, rather than first entering a feeding larval tadpole stage followed by metamorphosis as in amphibians.
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Amniocentesis Amniocentesis ( also referred to as amniotic fluid test or AFT ) is a medical procedure used in prenatal diagnosis of chromosomal abnormalities and fetal infections , and also used for sex determination in which a small amount of amniotic fluid , which contains fetal tissues , is sampled from the amniotic sac surrounding a developing fetus , and the ...
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Alate Dorylus male alate. Alate is an adjective that refers to wings or winglike structures. In entomology it usually refers to the winged form of a social insect, especially ants or termites, though can also be applied to aphids and some thrips.
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Cri du chat syndrome Cri du chat syndrome, also known as chromosome 5p deletion syndrome, 5p− syndrome (pronounced Five P Minus) or Lejeune’s syndrome, is a rare genetic disorder due to chromosome deletion on chromosome 5.[1] Its name is a French term (cat-cry or call of the cat) referring to the characteristic cat-like cry of affected children.[2] It was first ...
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- Edit. Share to: 1  Amniotic Fluid Levels in Pregnancy Amniotic fluid is the fluid surrounding your baby in the womb. 2  It is composed of about 98 percent water and 2 percent baby cells and salt. 3  It is created by the mother until t….
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What is an Amniotic Egg? - Definition & Examples Now that you know what an amniotic egg is, you may question which animals use amniotic eggs. The answer to this question is any reptile, bird or mammal. Animals that use amniotic eggs are called amniotes. Let's look at a few examples now.
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Amniotic fluid index Amniotic fluid index. Amniotic fluid index (AFI) is an estimate of the amount of amniotic fluid and is an index for the fetal well-being. It is a part of the biophysical profile. AFI is the score (expressed in cm) given to the amount of amniotic fluid seen on ultrasonography of a pregnant uterus.
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Amniocentesis Amniocentesis is a procedure used to take out a small sample of the amniotic fluid for testing. This is the fluid that surrounds the fetus in a pregnant woman. Along with various enzymes, proteins, hormones, and other substances, the amniotic fluid contains cells shed by the fetus.
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rete rete (plural retes or retia) ( 1 anatomy) A network of blood vessels or nerves. 2  An anatomical part resembling or including a network. 3  A rotating cutaway plate or overlay on an astrolabe or starmap which represents the horizon; used to locate stars and other astronomical features.
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Amniotic fluid An abnormally small amount of amniotic fluid is referred to as oligohydramnios; there may be less than 100 ml of fluid present. The cause is unknown. The condition may produce pressure deformities of the fetus, such as clubfoot or torticollis.
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mote mote (plural motes) 1  A small particle; a speck. 2  A tiny computer for remote sensing.
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- The fetus swallows and inhales amniotic fluid and releases urine into it. Cells from various parts of the fetus's body and chemicals produced by the fetus are present in the amniotic fluid.
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apatite Medical Definition of apatite. : any of a group of calcium phosphate minerals occurring variously as hexagonal crystals, as granular masses, or in fine-grained masses as the chief constituent of bones and teeth and of phosphate rock; especially : calcium phosphate fluoride Ca5F(PO4)3.
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amniote (biology) Any of the Amniota group of vertebrates having an amnion during the development of the embryo; mammals, birds and reptiles.
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- Amniocentesis is a procedure used to obtain a small sample of the amniotic fluid that surrounds the fetus during pregnancy. Amniotic fluid is a clear, pale yellow fluid made by the fetus. The fluid protects the fetus from injury and helps to regulate the temperature of the fetus.
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Medical Terms to Know Medical Terms to Know. Amniotic Fluid: This is a liquid of mostly water that surrounds the baby and protects it while it is in the uterus. When a woman’s water breaks, it is the amniotic fluid that is released in preparation for the baby’s birth.
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Polyhydramnios What is polyhydramnios definition? Excessive amniotic fluid levels causes, symptoms, diagnosis, treatment, management, pregnancy complications, Polyhydramnios Definition Polyhydramnios is an abnormal condition occurring in pregnancy, characterized by excessive amniotic fluid build-up (the fluid surrounding the baby in the uterus) [1]. It is the opposite of oligohydramnios (extremely low amniotic fluid levels).
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amnion Anatomy, Zoology. the innermost of the embryonic or fetal membranes of reptiles, birds, and mammals; the sac in which the embryo is suspended.
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Medical Definition of Amnion Amnion: A thin membrane that surrounds the fetus during pregnancy. The amnion is the inner of the two fetal membranes (the chorion is the outer one), and it contains the amniotic fluid.mnion: A thin membrane that surrounds the fetus during pregnancy. The amnion is the inner of the two fetal membranes (the chorion is the outer one), and it contains the amniotic fluid.
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Overview Amniocentesis. Amniocentesis is a procedure in which amniotic fluid is removed from the uterus for testing or treatment. Amniotic fluid is the fluid that surrounds and protects a baby during pregnancy.This fluid contains fetal cells and various chemicals produced by the baby.mniocentesis is a procedure in which amniotic fluid is removed from the uterus for testing or treatment. Amniotic fluid is the fluid that surrounds and protects a baby during pregnancy.
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Gamete A gamete (from Ancient Greek γαμετή gamete from gamein to marry) is a cell that fuses with another cell during fertilization (conception) in organisms that sexually reproduce.
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- This page provides all possible meanings and translations of the word Gamete. gamete(noun) a mature sexual reproductive cell having a single set of unpaired chromosomes. gamete(Noun) A reproductive cell (male (sperm) or female (egg)) that has only half the usual number of chromosomes.
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Amniotes The Eggs of Amniotes The eggs of many amniotes (such as birds and most reptiles) are enclosed in a hard, mineralized shell. In many lizards, this shell is flexible.
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Amniotic fluid In addition to providing the fetus with physical protection, the amniotic fluid is a medium of active chemical exchange. It is secreted and resorbed by cells lining the amniotic sac at a rate of 500 mL/hr at term and is swallowed, metabolized, and excreted as fetal urine at a rate of 50 mL/hr.
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amnion amnion. the innermost fetal membrane, which forms a sac filled with amniotic fluid that surrounds the embryo and later the fetus; as it enlarges it gradually obliterates the chorionic cavity and enfolds the umbilical cord. Called also bag of waters.mnion nodo´sum a nodular condition of the fetal surface of the amnion, usually appearing near the insertion of the cord; it may be associated with multiple congenital abnormalities, especially hypoplastic kidneys and oligohydramnios.