Exchange of cells among the mother and the fetus
Is there exchange of cells among the mother and the fetus via the placenta?
Expert
Under common conditions, there is no passage of cells across the placenta throughout gestation. The placenta has a flat mucosa splitting the richly vascularized area in contact with the mother’s endometrium from umbilical cord in contact with the fetal blood. This blockade is termed as placental barrier. Though permeable to certain substances (that is, selective permeability), the placental blockade forbids the passage of cells.
Write down the quaternary structure of protein? Do all proteins encompass quaternary structure?
The way a person views the world depends a great deal on the self-concept or image he has about himself. The self-concept plays an important role in perceptual selectivity. It can be thought of as an internal form of attention-getting and is largely based on the individual's complex psychological
Name the adnexal organ of the digestive system in which the bile is stored? Describe the reaction of organ to ingestion of fat rich food?
Specify whether all mammals have placenta?
Write down the differentiation between facilitated and simple diffusion. Facilitated through which kind of molecule does the word ‘facilitated’ signify?
Name the cells which generate the myelin sheath? Out of which substance is the myelin sheath made?
How is it described that a person with the spinal cord sectioned at the cervical level is still capable to execute the patellar reflex?
For what reason is the cellular immune response stimulated in the condition of chronic viral infection?
What do you mean by “mutualist exploration of the cellulose digestion”, a phenomenon which takes place in some insects and mammals?
Give a brief explanation of nucleic acids? Write down the historic origin of this name?
18,76,764
1937642 Asked
3,689
Active Tutors
1415361
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!