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Sac in which the fetus develops in amniotes
The amniotic sac, also called the bag of waters or the membranes, is the sac in which the embryo and later fetus develops in amniotes. It is a thin but
Amniotic_sac
Fluid surrounding a fetus within the amnion
The amniotic fluid is the protective liquid contained by the amniotic sac of a gravid amniote. This fluid serves as a cushion for the growing fetus, but
Amniotic_fluid
Excess of amniotic fluid in the amniotic sac
describing an excess of amniotic fluid in the amniotic sac. It is seen in about 1% of pregnancies. It is typically diagnosed when the amniotic fluid index (AFI)
Polyhydramnios
Membrane covering the head and face of a newborn at birth
is born inside the entire amniotic sac (instead of just a portion of it). The sac balloons out at birth, with the amniotic fluid and child remaining inside
Caul
Device for artificial gestation
the function otherwise provided by the placenta, an amniotic tank functioning as the amniotic sac, as well as an umbilical cord. The term "fetal Liquid
Artificial_womb
Innermost membranous sac that surrounds and protects a developing embryo
when they first form. It fills with amniotic fluid, which causes the amnion to expand and become the amniotic sac that provides a protective environment
Amnion
Rupture of the amniotic sac in pregnancy
amniorrhexis is a term used during pregnancy to describe a rupture of the amniotic sac. Normally, it occurs spontaneously at full term either during or at the
Rupture_of_membranes
Embryonic cell structure
between two fluid-filled cavities at either end: the primitive yolk sac and the amniotic sac. The epiblast is adjacent to the trophoblast and made of columnar
Bilaminar_embryonic_disc
Cavity of fluid surrounding an embryo
amniotic sac expands and occupy the majority of the volume of the gestational sac, eventually reducing the extraembryonic coelom (the gestational sac
Gestational_sac
Identical twins sharing the same amniotic sac in the womb
Monoamniotic twins are identical or semi-identical twins that share the same amniotic sac within their mother's uterus. Monoamniotic twins are always monochorionic
Monoamniotic_twins
Sampling of amniotic fluid done mainly to detect fetal chromosomal abnormalities
Amniocentesis or amniotic fluid test (AFT) is a medical procedure used primarily in the prenatal diagnosis of genetic conditions. It has other uses such
Amniocentesis
Deficiency of amniotic fluid in the amniotic sac
characterized by a deficiency of amniotic fluid, the fluid that surrounds the fetus in the abdomen, in the amniotic sac. The limiting case is anhydramnios
Oligohydramnios
Breakage of the amniotic sac before the onset of labour
previously known as premature rupture of membranes, is breakage of the amniotic sac before the onset of labour. Women usually experience a painless gush
Prelabor_rupture_of_membranes
Membranous sac attached to an embryo
residual external yolk sac.[citation needed] Diagram showing earliest observed stage of human ovum. 1 - Amniotic cavity 2 - Yolk-sac 3 - Chorion Diagram
Yolk_sac
Process of bearing offspring
it is fully dilated at 10 cm diameter. At some time, the amniotic sac bursts and the amniotic fluid escapes (also known as rupture of membranes or breaking
Birth
Medical test
membranes which refers to the rupture of the amniotic sac during pregnancy. The sodium chloride content of amniotic fluid secreted by the fetal kidneys may
Fern_test
Childbirth in which the head emerges first
examination, the leading part of the fetus becomes identifiable after the amniotic sac has been broken and the head is descending in the pelvis. Many factors
Cephalic_presentation
Shapeshifting and out-of-body manifestations in Nordic folklore
Swedish Academy gives the full Swedish sense as: 1) (†) amniotic sac (compare 'foal hamr', "amniotic sac of a foal"); 2) (†) about skin that covers a body;
Hamr_(folklore)
Medical condition
or abnormal vaginal discharge. Administration of antibiotics if the amniotic sac bursts prematurely can prevent chorioamnionitis occurrence. The signs
Chorioamnionitis
Embryonic structure
commencing constriction of the yolk-sac Opened uterus with cat fetus in midgestation: 1 umbilicus, 2 amniotic sac (chorion and amnion), 3 allantois Jones
Allantois
Medical condition
mother's cervix and moves it around to separate the membrane connecting the amniotic sac, which houses the baby, from the walls of the uterus. Once this membrane
Postterm_pregnancy
Amnion and chorion which surround and protect a developing fetus
chorion, allantois, and yolk sac. The amnion and the chorion are the chorioamniotic membranes that make up the amniotic sac, which surrounds and protects
Fetal_membranes
Conclusion of the human pregnancy
a baby is surrounded and cushioned by a fluid-filled sac (the amniotic sac). Usually, the sac ruptures at the beginning of or during labour. It may cause
Childbirth
Overview of sexual activity while expecting a child
the fetus is protected from sexual thrusting and unwanted semen by the amniotic fluid in the womb and by the cervical mucus plug in the woman's cervix
Sexual activity during pregnancy
Sexual_activity_during_pregnancy
Unequal blood supply among multiple fetuses in the womb leading to deformity
fetuses such that the amniotic fluid of both twins mixes, under the assumption that pressure is different in either amniotic sac and that its equilibration
Twin-to-twin transfusion syndrome
Twin-to-twin_transfusion_syndrome
Attachment of an embryo outside the uterus
Nhlahla, where the placenta had attached to the liver. The placenta and amniotic sac were left inside her, as it was expected they would be reabsorbed, and
Ectopic_pregnancy
Outermost fetal membrane around the embryo in amniotes
developing fetus and mother. The chorion and the amnion together form the amniotic sac. In humans it is formed by extraembryonic mesoderm and the two layers
Chorion
neurenteric canal, which forms a transitory communication between the amniotic sac and the yolk sac cavities. The neurenteric canal is thought to play a role in
Neurenteric_canal
Medical condition
by in vitro fertilization, "it frequently happens that more than one amniotic sac can be seen in early pregnancy, whereas a few weeks later there is only
Vanishing_twin
Thinning and shortening of the cervix
where a hook is inserted into the amniotic membranes to puncture, causing the amniotic fluid to drain from the amniotic sac that holds the fetus. The reason
Cervical_effacement
Culmination of a multiple pregnancy where two or more offspring are born
fetuses are surrounded by one or more placentas (chorionicity) and amniotic sacs (amnionicity). In humans, the average length of pregnancy (2 weeks fewer
Multiple_birth
Obstetrical procedure
having the baby aspirate the contents of the amniotic sac at the moment of birth. Most often, the amniotic sac will break of its own accord, most often by
Artificial rupture of membranes
Artificial_rupture_of_membranes
Surgical procedure to deliver a baby
consensus concerning monoamniotic twins (identical twins sharing an amniotic sac), the highest risk type of twins, is that they should be delivered by
Caesarean_section
Development and formation of the human embryo
hypoblast. The disc is stretched between what will become the amniotic cavity and the yolk sac. The epiblast is adjacent to the trophoblast and made of columnar
Human_embryonic_development
Rituals in several cultures that fathers adopt during pregnancy
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Couvade
Medical condition
but not conjoined, twins share a single common chorion, placenta, and amniotic sac in utero. Chang and Eng Bunker (1811–1874) were brothers born in Siam
Conjoined_twins
Medical condition
prophylactic purposes. In 1958, newborns born prematurely due to rupture of the amniotic sac were given chloramphenicol to prevent possible infections, and it was
Gray_baby_syndrome
Artificial stimulation of childbirth
irregular contractions, bleeding, and in 1 out of every 10 women an amniotic sac rupture, which can lead to a formal induction within 24 hours of the
Labor_induction
Childbirth in which the arm, shoulder, or trunk emerges first
a small fetus, or a fetus with some abnormality. Further, if the amniotic fluid sac ruptures, the shoulder or arm may become wedged as a shoulder presentation
Shoulder_presentation
Mixture of stem cells that can be obtained from amniotic fluid
are usually extracted from the amniotic sac by amniocentesis which occurs without harming the embryos. The use of amniotic fluid stem cells is therefore
Amniotic_stem_cells
One of two offspring produced by the same pregnancy
the chorionicity (the number of placentae) and amniocity (the number of sacs) of the pregnancy. Dichorionic twins either never divided (i.e.: were dizygotic)
Twin
Structure which develops in pregnant horses
allantoic calculi of tissue debris. The chemical composition is different from amniotic fluid, which along with the insolubility suggests that it's not a result
Hippomanes
Moment in pregnancy when the mother starts to feel movement in the uterus
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Quickening
Prenatal genetic disorder test
infection and amniotic fluid leakage. The resulting amniotic fluid leak can develop into a condition known as oligohydramnios, which is low amniotic fluid level
Chorionic_villus_sampling
Childbirth technique
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Lamaze_technique
Instinct in pregnant animals related to estradiol
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Nesting_instinct
Prevention of human pregnancy
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Birth_control
Class of animals
defined, are tetrapod vertebrate animals with an ectothermic metabolism and amniotic development. Reptiles traditionally comprise four orders: Testudines (turtles)
Reptile
Syndrome of severe multiple congenital anomalies in the fetus
thoracoabdominal wall defect with abdominal organ eventration into the amniotic sac; defective umbilical cord Type 3: Infraumbilical abdominal wall defect
Limb_body_wall_complex
Birth of a baby bottom first
completely filling the space of the dilated cervix. When the waters break the amniotic sac, it is possible for the umbilical cord to drop down and become compressed
Breech_birth
Velamentous placenta
into the middle of the placental mass and is completely encased by the amniotic sac. The vessels are hence normally protected by Wharton's jelly, which prevents
Velamentous_cord_insertion
Part of a fetus which will emerge first upon birth
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Presentation_(obstetrics)
Rendering technique in medical imaging
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
3D_ultrasound
Pregnancy monitoring test
closer surveillance is needed. Internal tocometry can only be used if the amniotic sac is ruptured (either spontaneously or artificially) and the cervix is
Cardiotocography
Primary organ of the respiratory system
system. When the lungs are formed the fetus is held in the fluid-filled amniotic sac and so they do not function to breathe. Blood is also diverted from the
Lung
Opening of the cervix
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Cervical_dilation
Procreative biological processes of humanity
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Human_reproduction
Pregnancy through in vivo fertilization
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Artificial_insemination
American science fiction horror episodes
The Kimono Woman helps Fatima give birth, then disappears with the amniotic sac as Boyd and Ellis arrive. Fatima explains the creatures were once the
List_of_From_episodes
Medical condition
crescent adjacent to the gestational sac. The hematoma is considered small if it is under 20% of the size of the sac and large if it is over 50%. The presence
Chorionic_hematoma
Score to assess whether induction of labor will be required
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Bishop_score
Vaginal discharge in the first few weeks after giving birth
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Lochia
Prenatal organism between the embryonic state and birth
being used for respiration at this point as the fetus is suspended in amniotic fluid). 3D ultrasound of 80-millimetre (3 in) fetus (about 3+1⁄2 months
Fetus
Identical twins that share the same placenta
twins (Monochorionic-Monoamniotic "MoMo"), they also share the same amniotic sac. Monoamniotic twins occur when the split takes place after the ninth
Monochorionic_twins
Abnormal appearance of a baby due to amniotic deficiency in the uterus
the amniotic sac has been severely compromised (in the cases of URA), or completely eliminated (in the cases of BRA). The decreased volume of amniotic fluid
Potter_sequence
Non-medical companion
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Doula
Date on which a pregnant woman is estimated to give birth
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Estimated_date_of_delivery
Assisted reproductive technology procedure
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
In_vitro_fertilisation
Termination of a pregnancy
(chorioamnionitis), which often occurs along with premature rupture of the amniotic sac (PPROM). If serious medical conditions such as these arise before the
Abortion
Topics referred to by the same term
MPEG Surround SAC (gene) Air sac Amniotic sac Anal sac or anal gland Bursa sac or bursa Chorion Dural sac, a structure of spinal cord Egg sac, the reproductive
SAC
Female parent
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Mother
Gynaecological procedure
the embryo or fetus, as well as the decidua, chorionic villi, amniotic fluid, amniotic membrane and other tissues. These are all tissues which are found
Vacuum_aspiration
Use of medical ultrasonography in pregnancy
the placenta, including site of umbilical cord insertion when possible Amniotic fluid volume Gestational age assessment Fetal weight estimation Fetal anatomical
Obstetric_ultrasonography
Physical posture the pregnant mother may assume during childbirth
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Childbirth_positions
Health issue
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Lupus_and_pregnancy
Medical condition
several complications, including intrauterine growth restriction, low amniotic fluid levels, preterm birth, fetal death, and occasionally, full-term gestation
Rudimentary_horn_pregnancy
Changes that can occur to the woman's body after childbirth
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Postpartum physiological changes
Postpartum_physiological_changes
Very young offspring of humans
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Infant
Death of children under the age of 1
spontaneous premature labor, those that occur due to spontaneous membrane (amniotic sac) rupture, and those that are medically induced. Both spontaneous factors
Infant_mortality
Natural premature termination of pregnancy
gestational sac, yolk sac, and fetal pole (embryo); or later in the pregnancy the foetus, umbilical cord, placenta, amniotic fluid, and amniotic membrane
Miscarriage
Australian television show
Episode four opens with the scene of a baby born still inside an amniotic sac. Returning parents Kirin (26) and Lauren (26) are introduced, who already
One Born Every Minute Australia
One_Born_Every_Minute_Australia
Scientology and Dianetics practice
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Silent_birth
Delivery through the vagina
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Vaginal_delivery
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Montevideo_units
Prenatal care and pregnancy nursing specialty
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Obstetrical_nursing
Childbirth that occurs in water
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Water_birth
Complication of pregnancy
more than one previous delivery, and too much amniotic fluid. Whether medical rupture of the amniotic sac is a risk is controversial. The diagnosis should
Umbilical_cord_prolapse
Medical test on pregnant women
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Contraction_stress_test
Medical specialty encompassing two subspecialties
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Obstetrics_and_gynaecology
Care and supervision of children
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Child_care
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Men's_role_in_childbirth
Canadian quintuplets, the first known to have survived infancy
making them identical quintuplets. Émilie and Marie had shared one amniotic sac, while Annette and Yvonne had shared another. Based on their mother Elzire
Dionne_quintuplets
Topics referred to by the same term
BOW as an acronym may refer to: Bag of waters, amniotic sac Bartow Municipal Airport (IATA:BOW), a public use airport near Bartow, Florida, United States
BOW
Measure of fetal growth
Measuring the fundal height can be an indicator of proper fetal growth and amniotic fluid development. Knowledge of gestational age may impact how the height
Fundal_height
First stage of pregnancy
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Implantation_(embryology)
Health professional
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Birth_attendant
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Immunization_during_pregnancy
Time period beginning after the birth of a child and extending for about one month
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Postpartum_period
Childbirth in a non-clinical setting
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Home_birth
Types of pregnancy imaging techniques
childbirth Water birth Placental expulsion Prenatal Anatomy Amniotic fluid Amniotic sac Endometrium Placenta Development Embryo Fetus Fundal height Gestational
Medical_imaging_in_pregnancy
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AMNIOTIC SAC
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AMNIOTIC SAC
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