True about umbilical cord
**Question:** True about umbilical cord
A. It is a lifeline for the fetus during pregnancy
B. It is a single structure connecting the placenta to the uterine wall
C. It contains blood vessels and nerves for the fetus
D. It remains in the abdomen after delivery
**Core Concept:**
The umbilical cord is a crucial structure that serves as a lifeline for the fetus during pregnancy. It connects the placenta, which is responsible for providing nutrients, oxygen, and waste removal, to the fetus within the uterus. The umbilical cord comprises two arteries (which carry oxygenated blood from the placenta to the fetus) and one vein (which carries deoxygenated blood from the fetus back to the placenta). Additionally, it contains a small amount of blood vessels for the fetus and nerves, which facilitate communication between the fetus and the mother.
**Why the Correct Answer is Right:**
The umbilical cord acts as the primary conduit for essential nutrients, oxygen, and waste removal between the placenta and the fetus. The correct answer (Option C) highlights the presence of blood vessels (arteries and vein) and nerves in the umbilical cord, which plays a crucial role in fetal survival and development.
**Why Each Wrong Option is Incorrect:**
A) The umbilical cord is essential for supporting the fetus, but it is not a lifeline itself. Lifelines for the fetus include the placenta and the uterus.
B) The umbilical cord connects the placenta to the fetus, not the placenta to the uterine wall.
C) Although the umbilical cord contains blood vessels, it does not solely consist of them, as it also includes nerves.
D) After delivery, the umbilical cord detaches from the placenta, but it remains in the abdomen of the newborn, not the mother.
**Clinical Pearl:**
The umbilical cord serves as a vital structure connecting the fetus to the placenta, ensuring the exchange of essential nutrients, oxygen, and waste removal. Understanding its composition and function is crucial for medical professionals to provide appropriate care during pregnancy, delivery, and postnatal care.