Following is the function of fallopian tube:
A. Secretion of estrogen and progesterone B. Helps in fetus development C. Act as passage way for the fetus D. Mobility of fertilized ovum
Correct Answer: D. Mobility of fertilized ovum
Explanation:
The fallopian tubes (also called oviducts or uterine tubes) have several important reproductive functions:
Functions of the Fallopian Tubes
1. Transport of the ovum (egg)
After ovulation, the fallopian tube picks up the egg released from the ovary using finger-like projections called fimbriae and transports it toward the uterus.
2. Site of fertilization
Fertilization of the egg by sperm usually occurs in the ampulla, the widest part of the fallopian tube.
3. Transport of the fertilized egg (zygote)
After fertilization, the tube safely transports the zygote to the uterus through muscular contractions and ciliary movement for implantation.
4. Provide nourishment
The tube secretes fluids that nourish both sperm and the fertilized egg during early development.
Summary
The fallopian tubes help receive the ovum, enable fertilization, and carry the fertilized egg to the uterus.
Other Options Details
A. Secretion of estrogen and progesterone
• Estrogen and progesterone are the main female sex hormones.
• They are primarily produced by the ovaries.
• Estrogen is responsible for the development of female secondary sexual characteristics (such as breast development and menstrual cycle regulation).
• Progesterone prepares the uterus for pregnancy, supports implantation of a fertilized egg, and maintains pregnancy.
B. Helps in fetus development
• This refers mainly to the uterus, where the fetus grows during pregnancy.
• The inner lining of the uterus (endometrium) provides nourishment to the developing fetus.
• The placenta forms inside the uterus and supplies oxygen and nutrients and removes waste products.
C. Act as passageway for the fetus
• This refers to the vagina and cervix.
• During childbirth, the cervix dilates and the fetus passes through the birth canal (vagina) to be delivered.
• It also serves as the passageway for menstrual flow to exit the body and for sperm to enter during fertilization.
D. Mobility of fertilized ovum
• This refers to the fallopian tubes (oviducts).
• After fertilization in the fallopian tube, the fertilized egg (zygote) travels from the tube to the uterus.
• Movement is aided by cilia (tiny hair-like structures) and muscular contractions of the tube.
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Writer: Vandita Singh, Lucknow (GS India Nursing Group)