Exchange of cells between mother and fetus
Explain whether there is a exchange of the cells between mother and fetus through the placenta?
Expert
Under the normal conditions, there exists no passage of the cells across placenta during the period of gestation. The placenta consists of the smooth mucosa which is separating the richly vascularized region in contact along with the mother’s endometrium against the umbilical cord which is in contact with fetal blood. This barrier is called as the placental barrier. Though permeable to some substances (selective permeability) the placental barrier forbids passage of the cells.
What is meant by the substrates of enzymatic reactions?
Describe how the self-fulfilling prophecy works and how it might impact or inter-relate to one’s performance or result overall.
This law allows employees to take up to 12 weeks of unpaid leave for family or medical reasons each year.
Give an example of the situation where the neuron cell body is situated in the part of body and its axonal terminal portion is in other distant portion of the body? Why this happen, explain?
State some similarities which reptiles and birds share regarding the reproduction, external coverage and excretion?
What is the major external morphological feature which differentiates platyhelminthes from other worms (or nematodes)?
Write a short note on the functions of calcitonin? Also write its features.
Why the carbon monoxide is really toxic for the humans?
Write down the respective constituents of gray matter and of white matter of spinal cord?
Explain, whether fishes have an open or closed circulatory system? How many chambers are there in heart of the fish and how does blood flow throughout fish body?
18,76,764
1956427 Asked
3,689
Active Tutors
1423786
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!