Is there exchange of cells between the mother and the fetus through the placenta?
Submitted by: AdministratorUnder normal conditions, there is no passage of cells across the placenta during gestation. The placenta has a smooth mucosa separating the richly vascularized region in contact with the mother's endometrium from the umbilical cord in contact with the fetal blood. This barrier is known as placental barrier. Although permeable to some substances (selective permeability), the placental barrier forbids the passage of cells.
Image Diversity: umbilical cord placental barrier
Submitted by: Administrator
Image Diversity: umbilical cord placental barrier
Submitted by: Administrator
Read Online Embryology Job Interview Questions And Answers
Top Embryology Questions
| ☺ | What are the archenteron and the blastopore? What is the stage of the embryonic development in which these structures are formed? What are the destinations of the archenteron and of the blastopore? |
| ☺ | After the blastula stage what is the following stage of the embryonic development? How is the passage from blastula to the next stage called? |
| ☺ | Which is the extra embryonic membrane whose function is to store nitrogen wastes of the embryo? Is this function present in placental mammalian embryos? |
| ☺ | Why can the allantois be considered an adaptation to terrestrial life? |
| ☺ | What is gastrulation? How during gastrulation are the first two germ layers formed? Which are these germ layers? |
Top Best Medical Categories
| ☺ | Staff Nurse Interview Questions. |
| ☺ | Lab Technicians Interview Questions. |
| ☺ | Pharmaceutical Interview Questions. |
| ☺ | Pharmacist Interview Questions. |
| ☺ | Microbiology Interview Questions. |
