Differentiate between the following pairs on the basis of what is mentioned within brackets:
Sperm duct and Fallopian tube (function)
Topic: Sperm duct and fallopian tube
Answer
The SPERM DUCT (vas deferens) TRANSPORTS SPERMS from the testis (epididymis) to the urethra.
The FALLOPIAN TUBE carries the OVUM from the ovary towards the uterus. It is also the site where FERTILISATION takes place, and the zygote then travels down it to the uterus.
The brackets restrict the answer to FUNCTION, so describe what each DOES.
THE ASYMMETRY IS THE POINT WORTH MAKING: the sperm duct is purely a transport tube, while the fallopian tube does TWO jobs — it transports AND it is where FERTILISATION occurs. An answer that omits fertilisation has missed what makes the pair worth comparing.
Both are the structures cut in the surgical methods of contraception: the VAS DEFERENS in a VASECTOMY, the FALLOPIAN TUBES in a TUBECTOMY.
| Point of difference | Sperm duct | Fallopian tube |
|---|---|---|
| Sex | Male | Female |
| Carries | Sperms | Ovum, and then the zygote |
| Function | Transport only | Transport AND the site of fertilisation |