Question:

Choose the correct sequence of transport at sperms in human from seminiferous tubules is:

Updated On: Aug 1, 2023
  • Vasa efferentia → Rete testis 
  • Rete testis → Epididymis → Vasa efferntia → Vas deferens
  • Rete testis → Vasa efferentia → Epididymis → Vas deferens
  • Vas deferens → Vasa efferentia → Epididymis → Rete testis
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The Correct Option is C

Solution and Explanation

The correct answer is option (C): Rete testis → Vasa efferentia → Epididymis → Vas deferens
The testis, epididymis, urethra, vas deferens, prostate gland, seminal vesicle, and penis are the primary male reproductive organs. Seminiferous tubules, which are made up of coil-like structures and serve as sperm production sites, make up the testis. the part of the epididymis that sits atop the seminiferous tubules. The seminiferous tubules and the epididymis are where the sperm travel. These structures serve as sperm storage till ejaculation. The sperm are ejaculated in the female vagina during sexual contact, and that is when their trip begins. With the aid of fertile cervical mucus, the sperm travels through the cervix and eventually enters the uterus. So, the correct sequence is Rete testis→ Vasa efferentia→ Epididymis→ Vas deferen.
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Concepts Used:

Human Reproduction

Reproduction in human beings involves the fusion of male and female gametes that produces in their reproductive system.

Male Reproductive System:

The male reproductive system comprises:

  • Testicles (testes): A pair of oval-shaped organs masked in a pouch known as the scrotum. They manage the production of sperms and the male hormone testosterone.
  • Scrotum: It is a sac-like organ that hangs under the penis and behind it. It is the house of the testes, or testicles, and maintains a temperature that is needed for the production of sperm by it.
  • Vas deferens: The sperms produced in testes are stored in a tube known as the epididymis. Here the sperms get matured and pass to the urethra via the muscular tube known as vas deferens.
  • Accessory glands: This includes three glands, namely the prostate gland, seminal vesicles, and Cowper’s gland. The secretions from the mentioned three glands mix to form a fluid known as semen. Semen nourishes the sperm, raises the volume, and helps in lubrication.
  • Penis: The penis is a cylindrical tube that serves as both an excretory organ, and a reproductive organ. It transfers sperms into the vagina during sexual intercourse.

Female Reproductive System:

The female reproductive system is active before, during, and after fertilization as well. It comprises the following parts:

  • A pair of ovaries: A pair of ovaries produce and stores ovum in them. They also produce a female hormone known to be estrogen.
  • Fallopian tubes (Oviducts): They are the area of fertilization. They connect both the ovaries with the uterus.
  • Uterus: Uterus is the place of development for the embryo.
  • Vagina: The part that connects the cervix to the external female body parts is called a vagina. It is the passage for the penis during coitus as well as a fetus during transfer.