Examples of 'yolk sac' in a sentence
Meaning of "yolk sac"
The yolk sac is an essential membranous structure found in the eggs of oviparous animals, including birds, reptiles, and marsupials. It surrounds and provides nutrients to the developing embryo. In humans, the yolk sac is the first site of red blood cell formation and contributes to the early development of the circulatory system before the placenta takes over nutrient supply
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- A membranous sac attached to an embryo, providing early nourishment in the form of yolk in bony fishes, sharks, reptiles, birds, and primitive mammals.
How to use "yolk sac" in a sentence
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yolk sac
The yolk sac of the larvae was small.
So they still have their yolk sac.
I see the yolk sac right here.
Oogonia are derived from yolk sac.
Absorbed yolk sac able to feed itself.
The developing embryos are at first sustained by a yolk sac.
The yolk sac to the first diet.
Hematopoiesis first takes place in the yolk sac.
Yolk sac entire resorption is completed at two weeks old.
Lymphopoiesis also arises from the yolk sac.
The yolk sac is an organ that is full of amniotic fluid.
This giant slimy yolk sac.
They have a yolk sac attached to them which provides nutrients.
Since before your embryo had a yolk sac.
Without the yolk sac the alevin can not survive.
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At the same time it involves the yolk sac.
There is no yolk sac yet.
The injections were made directly into the yolk sac.
The yolk sac is the first element to be formed within the gestational sac.
There is the yolk sac.
The internal yolk sac serves to provision the newborn shark until it learns to feed.
Alevins are wholly dependent on their yolk sac for nourishment.
Yolk sac tumor YST represents most malignancies.
They feed off of a large yolk sac until birth.
All young in this group receive nutrients from a yolk sac.
We made a yolk sac.
The unfertilized oocyte is then positioned on top of the yolk sac.
Primitive yolk sac.
This membrane along with hypoblast forms the primary yolk sac.
There is a correlation between having a single yolk sac and having a single amniotic sac.
Certain implantation is defined when all the embryos replaced leads to a yolk sac.
A newly hatched salmon or alevin emerges with a yolk sac attached to its abdomen.
Each young chameleon is born within the sticky transparent membrane of its yolk sac.
Is the yolk sac still outside the embryo?
These sharks are viviparous and have a yolk sac placenta.
Yolk sac outside the embryo vs. withdrawn yolk sac.
My scan found that there was just the yolk sac.
When the yolk sac is completely resorbed, the alevin leaves the redd.
The fish had been previously eating off of their yolk sac as alevin.
Yolk sac - the first of four extraembryonic membranes of amniotes to form during embryogenesis.
Amplification of titre could be possible through further cycles of yolk sac inoculation.
The histogenesis of the chick yolk sac was studied from incubation day 3 to posthatching day 8.
Primordial germ cells appear in the wall of the yolk sac in the fourth.
At this time, the yolk sac had become a more elongated and thicker structure.
Olive oil opens the connection between the liver and the yolk sac.
Muscle tissues, nerve fibers and a yolk sac were all detectable.
The same embryo taken from a different angle to demonstrate the size of the yolk sac.
Inside the mother, embryos are attached to a yolk sac and surrounded by a membrane.
A quick jab is required to puncture the skin and underlying tissues over the yolk sac.
Without a large egg, there is no large yolk sac for the embryo to survive on.
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Examples of using Yolk
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Beat the egg yolk in another bowl
The yolk was deemed to be very harmful to eat
That bloody egg yolk was no ordinary sign
Examples of using Sac
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The amnionic sac must have ruptured
Then he should not be spraying my ball sac
The air sac may contain an exudate
