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Fertilisation can only occur if the ovum...

Fertilisation can only occur if the ovum and sperms are transported simultaneously to the

A

Ampullary - isthmic junction

B

Ampullary - infundibular junction

C

Uterine cavity

D

Cervical conal

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding where fertilization occurs, we need to analyze the options provided and understand the reproductive anatomy involved in the process of fertilization. ### Step-by-Step Solution: 1. **Understanding Fertilization**: Fertilization is the process where the male gamete (sperm) and the female gamete (ovum) unite. For fertilization to occur, both gametes must meet at a specific location within the female reproductive system. 2. **Identifying the Reproductive Structures**: The female reproductive system includes the ovaries (where ova are produced), the fallopian tubes (where fertilization typically occurs), and the uterus (where the fertilized egg implants). 3. **Analyzing the Options**: - **Option 1: Ampulary Isthmic Junction**: This is a part of the fallopian tube where the ampulla and isthmus meet. It is a common site for fertilization. - **Option 2: Ampulary Infundibular Junction**: This is also part of the fallopian tube but is closer to the ovary. It is where the fimbriae help guide the ovum into the tube. - **Option 3: Uterine Cavity**: This is where the fertilized egg implants but is not the site of fertilization. - **Option 4: Cervical Canal**: This is the passageway from the vagina to the uterus and is not involved in fertilization. 4. **Determining the Correct Answer**: The most appropriate location for fertilization to occur is the **Ampulary Isthmic Junction**. This is because it is the area within the fallopian tube where the sperm can meet the ovum after ovulation. 5. **Conclusion**: Therefore, the correct answer to the question is **Ampulary Isthmic Junction**. ### Final Answer: **Ampulary Isthmic Junction**
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Assertion: All copulations cannot lead to fertilisation and pregnancy. Reason: Fertilisation can only occur if the ovum and sperms are transported simulaneously to the ampullary region.

Assertion: All copulations do not lead to the fertilisation and pregnance. Reason: Fertilisation can occur only if the ovum and sperms are transported simultaneously to the ampullary isthmic junction.

Read the following text and answer the following questions on the basis of the same: During sexual reproduction, the male inserts the sperm into the female reproductive tract, and sperm receive by the ovary and after that sperm fuse with the egg (ovum) in the ampullary region, this process is called fertilization, haploid nucleus of sperm fuse with that of ovum to form Diploid zygote. Assertion (A): All copulations do not lead to the fertilisation and pregnancy. Reason (R): Fertilisation can occur only if the ovum and sperms are transported simultaneously to the ampulllary-isthmic junction.

A : All copulations do not lead to fertilisation and pregnancy . R : Fertillsation can occur if the ovum and sperms are transported simultaneously to the ampullary - isthmic junction

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