Question

Which one of the following statements is correct about placenta?
1.Placenta is permeable to all bacteria.
2.O2 and CO2 cannot diffuse through the placenta.
3.Waste products diffuse out of placenta into maternal blood.
4.Placenta does not secrete human chorionic gonadotropins.

Answer 1

The placenta gives significant supplements to the creating child and in this way is essential to the infant's turn of events. For the most part, pregnancy continues without entanglement. At times, notwithstanding, issues can emerge. Intricacies of the placenta can be intense and can cause worries for both mother and baby.The placenta is pivotal to keeping your infant fit as a fiddle during pregnancy. It is an organ appended to the covering of the belly that conveys oxygen and supplements to the developing child.

Complete step by step answer:
The placenta is an organ which provides oxygen and nutrients to the baby or foetus and removes baby’s waste products and dioxide from its blood to mother’s blood. During pregnancy, it develops as an organ within the uterus..Mother placenta is attached to the wall of the uterus which is further attached to the baby's funiculus.
The placenta may be a large organ that develops during pregnancy. it's attached to the wall of the uterus, usually at the highest or side. The duct connects the placenta to your baby. Blood from the mother goes through the placenta, sifting oxygen, glucose and different supplements to your child by means of the funiculus. The placenta likewise sift through substances that would be hurtful to your child and eliminates dioxide and byproducts from your infant's blood. The placenta produces a variety of hormones that are needed during pregnancy, like lactogen, oestrogen and progesterone. It keeps the mother’s blood from breaking away the baby’s blood to guard the baby against infections. Towards the top of the pregnancy, the placenta passes on antibodies to safeguard the baby after birth.
Placenta protects babies from all kinds of bacteria and secretes hormones named as human chorionic gonadotropin.

Hence the correct answer is option(3)

Note: :Placenta comes out of the body after childbirth.The placenta regularly grows low in the belly however moves aside or up as the belly extends. The situation of the placenta will be checked at your 18-week ultrasound. The placenta is ousted from your body after the birth, ordinarily around 5 to 30 minutes after your child is conceived. This is known as the third phase of work. After the child is conceived you will keep on having mellow constrictions. You should give one more push to convey the placenta. Here and there your midsection will be rubbed or you will be given an infusion of oxytocin and the umbilical string will be tenderly pulled to help convey the placenta. On the off chance that you have a cesarean segment, the specialist will eliminate the placenta simultaneously. It is significant that the entire placenta comes out after pregnancy. In the event that any pieces of the placenta remain inside, they should be precisely eliminated to forestall draining and contamination.