NEET PG DENTAL EXAM

EMBRYOLOGY

PLACENTA FETAL MEMBRANES BIRTH DEFECTS AND TWINING

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
This structure is a thin and strong membrane that forms a sac and enclosed the foetus in the uterus.
A
placenta
B
amnion
C
umbilical cord
D
amniotic fluid
Explanation: 

Detailed explanation-1: -The fetal membrane is a thin tissue that surrounds the fetus during gestation, and is critical for maintaining a pregnancy to delivery [1]. In order for successful delivery to occur, normal rupture of the membrane (ROM) takes place at term.

Detailed explanation-2: -The amniotic membrane is a tissue of fetal origin and is composed of three major layers: A single epithelial layer, a thick basement membrane and an avascular mesenchyme. It contains no nerves, muscles or lymphatics and can be easily separated from the underlying chorion.

Detailed explanation-3: -The placental membrane is where the mother and fetus exchange gases, nutrients, etc. The membrane forms by the syncytiotrophoblast, cytotrophoblast, embryonic connective tissue (Wharton’s jelly), and the endothelium of fetal blood vessels.

There is 1 question to complete.