The primary function of the placenta is to provide oxygen and nutrients to the developing fetus and to remove waste products from the fetus's blood.
At what stage of pregnancy does the placenta begin to form?
The placenta begins to form at the blastocyst stage, around 5-6 days after fertilization.
Which cells play a crucial role in the formation of the placenta?
Trophoblast cells play a crucial role in the formation of the placenta.
How does the placenta facilitate nutrient exchange between mother and fetus?
The placenta facilitates nutrient exchange through villi that increase surface area, allowing diffusion of nutrients and oxygen from maternal blood to fetal blood.
What role does the placenta play in hormone production?
The placenta produces hormones such as hCG, progesterone, and estrogen, which are essential for maintaining pregnancy.
What is placental abruption?
Placental abruption is a condition in which the placenta detaches from the uterine wall before delivery.
What is the placental barrier and its function?
The placental barrier is a semipermeable membrane that controls the exchange of substances between maternal and fetal blood.
Name a common complication associated with the placenta.
A common complication associated with the placenta is placenta previa.
How is the placenta expelled after birth?
After birth, the placenta is expelled in the third stage of labor through uterine contractions.
What structural transformation does the placenta undergo throughout pregnancy?
Throughout pregnancy, the placenta grows in size and thickness, increasing its surface area to support the growing fetus.
What is the role of the umbilical cord in relation to the placenta?
The umbilical cord connects the fetus to the placenta, allowing the exchange of blood between both.
What nutrients are typically transferred from mother to fetus via the placenta?
Nutrients such as glucose, amino acids, fatty acids, and vitamins are transferred from mother to fetus via the placenta.
How does the placenta contribute to immune protection for the fetus?
The placenta provides immune protection by transferring antibodies from mother to fetus.
What is the chorion and its relationship to the placenta?
The chorion is an outer fetal membrane that develops into part of the placenta.
Describe the blood supply system of the placenta.
The placenta receives maternal blood through spiral arteries and returns it to the maternal circulation through uterine veins.