Select the correct sequence for transport of sperm cells in male reproductive system.
- Testis →Epididymis→ Vasa efferentia →Rete testis→Inguinal canal→→ Urethra
- Seminiferous tubules →Rete testis Vasa efferentia→ Epididymis →Vas deferens→ Ejaculatory duct →Urethra→ Urethral meatus
- Seminiferous tubules → Vasa efferentia →Epididymis →Inguinal canal → Urethra
- Testis → Epididymis →Vasa efferentia →Vas deferens → Ejaculatory duct →Inguinal canal → Urethra→Urethral meatus
The Correct Option is B
Solution and Explanation
The correct sequence for the transport of sperm cells in the male reproductive system is: Seminiferous tubules → Rete testis → Vasa efferentia → Epididymis → Vas deferens → Ejaculatory duct → Urethra → Urethral meatus. Let's break down this pathway step-by-step:
- Seminiferous Tubules: Sperm production begins in the seminiferous tubules, which are coiled structures located within the testis.
- Rete Testis: Once produced, sperms move from the seminiferous tubules into the rete testis, a network of tubules.
- Vasa Efferentia: From the rete testis, sperm travels through the vasa efferentia, which are small ducts leading out of the testis.
- Epididymis: Sperms then enter the epididymis, where they mature and are stored. The epididymis is a long coiled tube that runs along the back of each testicle.
- Vas Deferens: During ejaculation, sperm moves from the epididymis through the vas deferens, a muscular tube that propels sperm forward.
- Ejaculatory Duct: The vas deferens connects with seminal vesicles to form the ejaculatory duct, where sperm mixes with seminal fluid.
- Urethra: The sperm travels through the urethra, which runs through the penis and serves as a common passageway for urine and reproductive fluids.
- Urethral Meatus: Finally, sperm exits the body through the urethral meatus, the external opening of the urethra.
Each step in this sequence ensures that sperm is effectively transported from the site of production in the testes, through maturation and storage, to eventual ejaculation. This pathway is critical for male fertility, as any disruption could potentially impact sperm delivery.
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{ll} सूची I & सूची II
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