fab news about ur 11 Eggs huni!!! Keeping everything crossed and can't wait to hear of ur fantastic embryo's try not worry to much about ur Uterus easier said than done I know
thinking of you
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Maz here some info
How is the uterus formed?
Stage 1
The uterus begins to form ten weeks after an egg is fertilized by a sperm to create an embryo. The structures which give rise to the uterus are a pair of tubes called the mullerian ducts. At the end closest to the head of the embryo (which will be referred to as the "top"), these two tubes will become the fallopian tubes. They remain separated at a distance throughout development. The other end of these tubes which are closest to the embryo's bottom lie side by side, close together. They will form the uterus by fusing together to become one structure. Fusion occurs between the two middle walls which face one another. They form one central wall - the "median septum" - in the middle of one newly formed, larger tube.
Stage 2
The fusion of the two mullerian ducts at the beginning of week ten produces a cylindrical structure of equal diameter throughout. However, the fully developed uterus is wider at top than the bottom. The next step in the development of the uterus is the widening of the top of this uterine tube. This is achieved by an expansion of the top part of the 'central wall'. As this wall grows, the whole tube becomes wider at the top forming the part of the uterus known as the "fundus". This process occurs in an embryo ten to thirteen weeks old.
During this stage, changes also occur in the lower aspect of the fused mullerian ducts. Here the 'central wall' dissolves leading to a continuous uterine cavity at the bottom of the uterus, but still with a 'central wall' at the top.
Stage 3
The uterus is completed during thirteen to twenty weeks of development. This completion is dependent on the degeneration of the top of the median septum. This septurn separates the two horns ("cornua") of the uterus which are the portions of the uterus that lie at the top furthest from the center. Its dissolution begins at the bottom of this septurn and progresses toward the fundus of the uterus. When it is complete, a single, continuous uterine cavity results.
What happens when things go wrong?
https://www.femme-health.com/images/anatomy/variations.jpg
Legend
A - Uterus didelphys
B - Uterus duplex bicornis bicollis, vagina simplex
C - Uterus bicornis unicollis, vagina simplex
D - Uterus septus
E - Uterus subseptus
F - Uterus arcuatus or uterus cordiformis
G - Uterus unicornis
H - Uterus simplex (the usual form) (also O)
I - Uterus subseptus unicorporeus with septate cervix
J - Uterus septus duplex (uterus bilocularis)
K - Uterus bicornis, unilateral rudimentarius
L - Uterus with closed accessory horn
M - Case: Uterus, small as a thumbnail. Right tube normal. Left tube replaced by a strand of fibrous tissue. Both ovaries appeared grossly normal and were actually twice the size of the uterus. There was no cervix. The vagina was one inch long (2.54 cm) and about three-eighths of an inch wide (0.95 cm).
N - Case: Illustration demonstrating uterus duplex (bicornis) unicollis with a vaginal septum dividing the vagina into a blind pouch and a left normal vagina. Each member had a single normal tube and an associated normal ovary
O - Normal uterus
Septate
A septate uterus results from a problem in stage 2 or 3 of uterine development. The two mullerian ducts fused normally; however, there was a failure in degeneration of the median septum. If this failure was "complete", a median septum persists in the entire uterus separating the uterine cavity into two single-horned uteri which share one cervix. If this failure was "partial", re-absorbtion of the lower part of the median septum occured in stage 2, but the top of the septurn failed to dissolve in stage 3. Hence, there is a single cervix and uterine cavity at the bottom, but at the top that cavity divides into 2 distinct horns. Since this uterine anomaly occurs later in uterine development after complete duct fusion, the external shape of the uterus is a single unit (normal appearing). This is distinct from the bicornuate uterus which can be seen branching into two distinct horns when viewed from the outside.
Effect - The septum which fails to dissolve in the septate uterus is unlike the walls of a normal uterus because the septurn was never destined to be a uterine wall. The septum has lower blood flow than the normal uterine walls and it is believed that when placenta implant on this wall, it is less capable than a normal wall of adequately supplying blood to the placenta. Placental implantation on the septurn may be responsible for the higher incidence of intrauterine growth restriction and fetal loss seen in women with septate uteri. Studies on fetal survival rates have found widely varying numbers from 10 -75%, but a recent study found a live birth rate of 62% in women with septate uteri.
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