placentas
Womb nourishment organs
Placentas is the plural of placenta, the organ that develops in a pregnant mammal's uterus to nourish the fetus.
It connects to the uterine wall and delivers oxygen and nutrients through the umbilical cord, then is expelled after birth as afterbirth.
Some mammals eat the placenta; some humans do too, though evidence for health benefits is thin.
The Latin plural placentae appears in medical contexts.
Expelled fetal membranes
- deliveryConveyance of goods
- umbilicalOf the cord connecting fetus
- newbornInfant just delivered
- laborStrenuous effort; also childbirth
contractions · midwife · obstetrics · maternity · cesarean · neonatal · doula · epidural
Embryonic implantation cells
- blastocystEarly developmental stage before implantation
- chorionOuter embryonic membrane
- amnionFetal enclosing membrane
- villiIntestinal absorptive protrusions
syncytiotrophoblast · implantation · gestation · fetus · embryonic · zygote · gravid · decidua
Body's working component
- membraneThin tissue sheet
- lobesRounded projecting parts
- cotyledonsEmbryonic plant's first leaves
- amniotic sacMembrane enclosing developing fetus
maternal side · tissue · disc-shaped · vascular · spongy · bloody · examination · pathology
Religious honoring of forebears
- traditional medicineInherited therapeutic practices
- fertility symbolObject representing reproductive power
- spiritual beliefsConvictions about transcendent reality
- tree plantingInstalling saplings in earth
Adding breathable gas
- nutritionBodily use of food
- blood supplyCirculatory delivery to tissues
- exchangeMutual giving and receiving
- hormonesBloodstream signaling molecules
waste removal · antibodies · immunoglobulin · endocrine · progesterone · estrogen · barrier · filtration
afterbirth
Expelled fetal membranes
labor · contractions · midwife · obstetrics · maternity · cesarean · neonatal · doula · epidural · birthing
trophoblast
Embryonic implantation cells
- blastocystEarly developmental stage before implantation
- chorionOuter embryonic membrane
- amnionFetal enclosing membrane
villi · syncytiotrophoblast · implantation · gestation · fetus · embryonic · zygote · gravid · decidua · yolk sac
organ
Body's working component
- membraneThin tissue sheet
- lobesRounded projecting parts
- cotyledonsEmbryonic plant's first leaves
maternal side · amniotic sac · tissue · disc-shaped · vascular · spongy · bloody · examination · pathology · calcification
ancestor worship
Religious honoring of forebears
- traditional medicineInherited therapeutic practices
- fertility symbolObject representing reproductive power
- spiritual beliefsConvictions about transcendent reality
oxygenation
Adding breathable gas
- nutritionBodily use of food
- blood supplyCirculatory delivery to tissues
- exchangeMutual giving and receiving
hormones · waste removal · antibodies · immunoglobulin · endocrine · progesterone · estrogen · barrier · filtration · gas exchange
- biohazard wastemedical waste, sharps containers, hazardous waste, biohazard, needles
placentasheart
Circulatory system's pump
brain · liver · kidneys · lungs · vital organs
placentasgonads
Gamete-producing glands
ovaries · testes · gametes · abortifacients · contraceptives
- placental mammalsAnimals with internal fetal nourishment