NEET BIOLOGY

Detailed explanation-1: -The placenta is an organ that develops in the uterus during pregnancy. This structure provides oxygen and nutrients to a growing baby. It also removes waste products from the baby’s blood. The placenta attaches to the wall of the uterus, and the baby’s umbilical cord arises from it.

Detailed explanation-2: -The umbilical vein carries oxygenated, nutrient-rich blood from the placenta to the fetus, and the umbilical arteries carry deoxygenated, nutrient-depleted blood from the fetus to the placenta (Figure 2.2). Any impairment in blood flow within the cord can be a catastrophic event for the fetus.

Detailed explanation-3: -The fetus is connected by the umbilical cord to the placenta, the organ that develops and implants in the mother’s uterus during pregnancy. Through the blood vessels in the umbilical cord, the fetus receives all the necessary nutrition, oxygen, and life support from the mother through the placenta.

Detailed explanation-4: -Here’s how it works: When you eat, the food travels to your stomach, where it’s broken down (digested) into glucose, fats, vitamins, minerals, and protein. The nutrients are absorbed into your bloodstream and travel to the placenta.

Detailed explanation-5: -The placenta is a joint project between mother and child. Both contribute cells to form the organ, a disk that usually measures around 8 inches in diameter and weighs about a pound by the time a baby is born.