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Does the fimbria of the uterine tube aid in moving a developing embryo?
Wiki User
∙ 13y ago
No they don't....there are ciliated cells that line the inside of the tube along with peristalsis.
Wiki User
∙ 13y ago
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How do sperm get through the cervix?
Spermatozoa have motility, whipping their tails rapidly, moving from the vagina through the cervix and up through the uterine lining to the fallopian tubes where the ovum is met.
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My girlfriend broke up with me, saying that we were developing divergent boundaries. In plate tectonics, divergent boundaries are linear features that exist between two tectonic plates that are moving away from each other.
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What on the inner lining of the fallopian tube aids in moving a developing embryo?
The uterine tube is called the fallopian tube and the lining is made up of tiny hairlike, fingers called fimbria. The fimbria move the developing embryo along the fallopian tube to the uterus where it will embed itself. Here it will grow and develop until it is ready to be born in about 9-10 months..
What is embryo transfer?
Embryo transfer is the process of moving embryos fertilized outside the body (through in vitro fertilization) into a woman's body for conception and pregnancy.
What color is the embryo?
The precise color of an embryo will change as it develops, but for much of development, pigmented cells have not yet formed, so the embryo will mostly be white-pink in color. The embryo proper will be white or off-white, but the circulatory system forms pretty early so the red of the blood moving through the embryo gives it a pinkish hue.
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Placenta formation?
Many people have mistaken ideas about how a growing embryo eats and breathes in the uterus.From the earliest stages of its development, the growing embryo requires nutrition and oxygen, and a disposal system for the waste products of its own metabolism. All of this is accomplished by the placenta, which allows the growing embryo to eat and breathe while in the mother's uterus.To get some perspective on how the placenta began, let's go back to Day 8. This hollow ball of cells moving through the uterus is the blastocyst, searching for an implantation site. Here you see its outer layer beginning to extend out and implant in the uterine lining, searching for the uterine blood vessels that would nourish it throughout the pregnancy.As it went deeper, a single layer of cells from the mother's uterine lining surrounded it, so that it would be protected from harm. On Day 9, as it grew larger and more complex, the blastocyst became an embryo. Here it's about the size of a pinhead.Also on Day 9, the outer layer of the embryo developed spaces called lacunae. The lacunae filled up with blood from the mother's uterine lining.On Day 13, small projections from the embryo's chorionic layer reached out into the uterine lining. The chorionic layer is one of the membranes that surround the embryo and help it implant.On Days 15 through 21, blood vessels began to form beneath this chorionic layer.Around Day 21, the embryo's blood stream and the mother's blood stream were in such close contact that nutrients and oxygen could cross from mother to embryo. This was how the embryo first got its food and air from the mother, and technically this is when the placenta began to function.Let's magnify this area so you can see what we're talking about. Here you see a vein and an artery from the embryo in close contact with the blood in the mother's uterine lining. Inside the blood vessels, you can also see red blood cells, which carry oxygen.The two blood streams are separated by a thin collection of tissues in the placenta called the blood barrier. This barrier permits small particles like nutrients and oxygen to pass from the mother to the embryo, (pause) and allows waste products to pass from the embryo back to the mother. The blood barrier also prevents many large or potentially harmful particles from entering the embryo's blood stream. Notice that the red blood cells do not cross from the mother's blood stream to the embryo's.You may be wondering how a mother's blood cells could be harmful to her growing baby, and why it's important to keep the two blood streams separate. If the mother's blood type is RH negative, and her embryo's blood type is RH positive, then the mother's antibodies would treat the embryo as an invading foreign organism, and try to destroy it.Now you can see why the placenta and its blood barrier are important for supplying the growing embryo with nutrition and oxygen, removing its waste products, and preventing harmful substances from getting into its blood stream.Reviewed ByReview Date: 09/16/2008Dan Sacks MD, FACOG, Obstetrics & Gynecology in Private Practice, West Palm Beach, FL. Review provided by VeriMed Healthcare Network.
Can you get worms in your period blood?
If the "worms" are dark red and not moving, I'm guessing what you're seeing are pieces of the uterine lining which sloughs off each month. If they're moving - I have no idea what's going on!
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I think you mean a developing country.
How do sperm get through the cervix?
Spermatozoa have motility, whipping their tails rapidly, moving from the vagina through the cervix and up through the uterine lining to the fallopian tubes where the ovum is met.
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The yolk of the frog egg divides, and life for the young embryo is starting. The yoke keeps dividing until it looks like a berry inside jello. The embryo takes on a tadpole shape, growing longer and moving around in the egg. About six to twenty-one daysafter being fertilized, the frog eggs hatch.
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Your invisalign are working if your teeth are moving and each set fits properly. If you find that you are developing gaps in between your trays and teeth you may be off track.
How do toads catch their prey?
the same way the frogs cacth there's. They would only eat anything that moves when they get a glimspe of the moving bug they follow it and there long tongue does the rest.
