"Allantoic" Pronounce,Meaning And Examples
"Allantoic" Natural Recordings by Native Speakers
"Allantoic" Meaning
The allantoic refers to the allantois, an embryonic structure found in reptiles, birds, and mammals, including humans during early development. It is a membranous sac that arises from the primitive streak and is involved in waste elimination and later contributes to the formation of the umbilical cord in mammals. In birds and reptiles, it plays a role in gas exchange.
"Allantoic" Examples
1. The allantoic duct is a structure found in the development of reptilian and avian embryos, connecting the urinary bladder to the chorion.
2. In mammals, the allantois is an important part of the placenta, aiding in waste exchange between the fetus and mother during pregnancy.
3. During embryonic development, the allantois plays a role in the formation of the umbilical cord in humans, containing blood vessels that supply the fetus with nutrients and oxygen.
4. The allantoic membrane, in birds, serves as a respiratory organ before hatching, allowing gas exchange through the eggshell.
5. Comparative embryology studies often focus on the allantoic structures in different species to understand the evolution of reproductive strategies and fetal development.
"Allantoic" Similar Words
All
"all" refers to everything or everyone within a given context or category. It indicates the entirety or complete amount of something. For example, "All students must submit their assignments on time" means every single student is expected to do so.
Allagmatic
The term "allagmatic" is not widely recognized or commonly used. It does not have a specific meaning in standard English. It could potentially be a nonce word, which is a word created for a single occasion or made up on the spot, or it might be a misspelling or variant of another word. Without further context, it's difficult to provide a precise definition.
Allah
" Allah " is the Arabic word for God, used primarily by Muslims as a reference to the one and only divine being in Islamic theology.
Allahabad
Allahabad, also known as Prayagraj, is a city in the Indian state of Uttar Pradesh. It has great religious and historical significance, particularly for Hindus, as it is the site of the confluence of three sacred rivers - the Ganges, Yamuna, and the mythical Saraswati. The city hosts the Kumbh Mela, a major Hindu pilgrimage and festival that attracts millions of visitors every 12 years. Allahabad has a rich cultural heritage and is also known for its literature, education, and being home to the Allahabad University, one of India's oldest central universities.
Allanite
Allanite is a mineral that belongs to the epidote group. It is a calcium-iron-aluminum silicate mineral with the chemical formula Ca(Fe,Al)(Al,Fe)SiO(OH). Allanite is typically found in metamorphic and igneous rocks and is often associated with granite, skarns, and certain types of metamorphosed sediments. It can vary in color from yellow-green to brown and may contain small amounts of rare earth elements. The presence of allanite in rocks can be useful for geologists in understanding geological processes and as a marker of specific rock formations.
Allantoate
The term "allantoate" refers to an organic compound, specifically an amino acid derivative, that is involved in nitrogen metabolism in plants and some animals. It is also known as allantoic acid or uric acid amide. In the context of embryonic development, it is a part of the allantois, an embryonic structure found in reptiles, birds, and some mammals that plays a role in waste excretion and contributes to the formation of the umbilical cord in mammals.
Allantochorion
The allantochorion is a fetal membrane in mammals, specifically referring to the outermost layer of the placenta. It is formed by the fusion of the trophoblast (part of the developing embryo) and the chorionic epithelium (from the uterine wall). The allantochorion helps in the exchange of gases, nutrients, and waste between the fetus and the mother's blood vessels within the placenta.
Allantoenteric
The term "allantoenteric" refers to the connection or relationship between the allantois and the digestive tract in the embryonic development of certain animals, particularly mammals. The allantois is an extraembryonic membrane that plays a role in waste elimination and gas exchange in the early stages of development. When it fuses with the壁 of the intestine, it forms the allantoenteric duct, which later contributes to the formation of structures like the urachus in humans.
Allantoid
Allantoidal
Allantoidea
Allantoides
Allantoin
Allantois
Allargando
Allative