What does amniochorial mean?

Last Update: May 30, 2022

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What is a amnion in medical terms?

Medical Definition of amnion

: a thin membrane forming a closed sac about the embryos and fetuses of reptiles, birds, and mammals and containing the amniotic fluid. — called also amniotic sac.

What is Aminography?

[am″ne-og´rah-fe] radiography of the pregnant uterus after injection of an opaque contrast medium into the amniotic fluid.

What does alled mean?

1 : having or being in close association : connected two families allied by marriage. 2 : joined in alliance by compact or treaty specifically, capitalized : of or relating to the nations united against Germany and its allies in World War I or those united against the Axis powers in World War II.

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27 related questions found

What does all accounted for mean?

—used to say that all the people who are supposed to be at a place or event are there The students are all present and accounted for.

How do you use by all means in a sentence?

Examples of 'by all means' in a sentence by all means
  1. "If you want to reveal your presence to Xaphista, by all means, stop his priests from calling him. Jennifer Fallon TREASON KEEP (2001.
  2. ` Send them, by all means, "he had heard, any notice o ' me. ...
  3. Wake and warn your friends and relatives by all means, but run for it.

Are humans Amniotes?

Amniotes are a clade of tetrapod vertebrates comprising the reptiles, birds, and mammals. ... In eutherian mammals (such as humans), these membranes include the amniotic sac that surrounds the fetus. These embryonic membranes and the lack of a larval stage distinguish amniotes from tetrapod amphibians.

What is the difference between chorion and amnion?

The amnion is the inner membrane that surrounds the embryo while the chorion surrounds the embryo, the amnion and other membranes.

Does Omni mean all?

a combining form meaning “all,” used in the formation of compound words: omnifarious; omnipotence; omniscient.

What is the word part for bacteria?

bacterial Add to list Share. ... The root word, bakterion, is Greek for "small staff or rod." Bacterial organisms were named this way in the 1830's because the first bacteria observed through a microscope were rod-shaped.

What is the correct meaning for Angio?

Angio- is a combining form used like a prefix meaning “vessel” or “container.” It is used in medical and scientific terms. In anatomy, angio- specifically refers to blood and lymphatic vessels. In botany, angio- specifically refer to seed vessels. Angio- comes from the Greek angeîon, meaning “vessel, vat, shell.”

Is a fish an animal?

Fishes are a group of animals that are completely aquatic vertebrates that have gills, scales, swim bladders to float, most produce eggs, and are ectothermic. Sharks, stingrays, skates, eels, puffers, seahorses, clownfish are all examples of fishes.

Is fish a reptile?

A fish is an animal that lives only in the water, whereas a reptile lives in both land and water. A fish is an aquatic vertebrate that is cold blooded or ectothermic. ... Some examples of fish are lamprey, sharks, ray fish etc, while lizards, crocodiles, snakes, turtles etc are reptiles.

Are lungfish amniotes?

Among turtles, lungfish, fish, and amphibians, only the turtles are classified as amniotes.

What did amniotes evolve from?

The first amniotes evolved from amphibian ancestors approximately 340 million years ago during the Carboniferous period. The early amniotes diverged into two main lines soon after the first amniotes arose. The initial split was into synapsids and sauropsids.

Are frogs amniotes?

Salamanders, frogs, and other living "amphibians" are in a quite derived lineage of tetrapods, called Lissamphibia. Reptiles and mammals are members of a group called Amniota (the amniotes). ... Cowen points out, most of these early tetrapods more closely resembled lizards or crocodiles (see p.

How do amniotes breathe?

In amniotes, the primarily fully terrestrial vertebrates, lungs are the principle sites for air breathing and their anatomy exhibits tremendous structural diversity.

Do it by all means?

convention. You can say 'by all means' to tell someone that you are very willing to allow them to do something.

Is by all means polite?

Origin of By All Means

(By any means necessary is a phrase of its.) By all means adds emphasis to the speaker's point. People often use this to emphasize that they truly mean what they say. It also is a polite way to encourage someone to take advantage of an offer without feeling guilty about it.

How do you use by means?

If you do something by means of a particular method, instrument, or process, you do it using that method, instrument, or process. This is a two year course taught by means of lectures and seminars. The trailer was connected to the car by means of a complicated system of hoses, pipes and rods.

Are all present and accounted for?

All members or items of a group are here or their whereabouts are known, as in Is everyone ready to board the bus?-All present and accounted for. This expression almost certainly originated in the armed forces as a response to roll call.

Will be accounted for meaning?

1. To constitute the governing or primary factor in: Bad weather accounted for the long delay. 2. To provide an explanation or justification for: The suspect couldn't account for his time that night.

What does on both accounts mean?

: on both points I agree with you on both counts.

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