…..is the another term used for the umbilical cord
A. Funis
B. Chorion
C. Onphalon
D. Amnion
Correct Answer: A. Funis
Explanation
Funis is another term used for the umbilical cord.
Explanation:
- The word funis comes from Latin and means rope or cord.
- In embryology and obstetrics, the umbilical cord is often referred to as the funis (funis umbilicalis).
- The funis/umbilical cord connects the fetus to the placenta.
- It contains two umbilical arteries and one umbilical vein, surrounded by Wharton’s jelly, which protects the blood vessels.
- Its main function is to transport oxygen and nutrients from the mother to the fetus and carry waste products from the fetus to the mother.
✅ Correct answer: Funis
Other Options Details
Here is a clear explanation of all the options related to fetal membranes and the umbilical cord:
A. Funis
- Funis is another name for the umbilical cord.
- It connects the fetus to the placenta.
- It contains two umbilical arteries and one umbilical vein.
- Its main function is to transport oxygen, nutrients, and antibodies to the fetus and carry carbon dioxide and waste products back to the placenta.
- It is protected by Wharton’s jelly, which prevents compression of blood vessels.
B. Chorion
- Chorion is the outermost fetal membrane.
- It forms the fetal part of the placenta.
- Chorionic villi develop from the chorion and help in exchange of gases, nutrients, and waste products between mother and fetus.
- It plays a major role in implantation and placental formation.
C. Omphalon (Onphalon)
- Omphalon refers to the umbilicus (navel).
- It is the point on the fetal abdomen where the umbilical cord attaches.
- After birth, when the umbilical cord is cut, the omphalon becomes the navel.
- It does not perform transport functions.
D. Amnion
- Amnion is the innermost fetal membrane.
- It encloses the amniotic cavity, which is filled with amniotic fluid.
- Functions of the amnion and amniotic fluid include:
- Protecting the fetus from injury
- Allowing free fetal movement
- Maintaining constant temperature
- Preventing infection
Summary
- Funis → Umbilical cord
- Chorion → Outer fetal membrane, forms placenta
- Omphalon → Umbilicus (navel)
- Amnion → Inner membrane enclosing amniotic fluid
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Writer: Vandita Singh, Lucknow (GS India Nursing Group