NIME Next Batch PGI Quest in Delhi from 10 August to 20 August
B. Straight tubules—rete testis—efferent tubules
C. Straight tubules—efferent tubules—epididymis
D. Straight tubules—rete testis—epididymis
Which of the following is a correct sequence of sperm movement?
A. Rete testis—straight tubulesefferent tubulesB. Straight tubules—rete testis—efferent tubules
C. Straight tubules—efferent tubules—epididymis
D. Straight tubules—rete testis—epididymis
Ans. B. (Straight tubules—rete testis—efferent tubules)
Explanation
• The sperms are formed in the seminiferous tubules (spermatogenesis) and pass on to the straight tubules (tubuli
• The sperms are formed in the seminiferous tubules (spermatogenesis) and pass on to the straight tubules (tubuli
recti).
• They then enter a network of tubules (rete testis), where they are exposed to high concentration of estrogen.
• The sperms get concentrated in the rete testis, and if they don’t, infertility can result (due to diluted semen).
• They then enter a network of tubules (rete testis), where they are exposed to high concentration of estrogen.
• The sperms get concentrated in the rete testis, and if they don’t, infertility can result (due to diluted semen).
• Now, the sperms reach
efferent ductules. The efferent ductules are lined by ciliated columnar
epithelium, the cilia help the mass movement of sperms.
• And finally, the sperms reach
the epididymis. Epididymis is lined by pseudo-stratified columnar epithelium
with st cilia.
• Stereo-cilia are also seen in
the internal ear hair cells and are believed to absorb the fluids (Cilia is a
misnomer).
• The sperms will be stored in the epididymis till their ejaculation.
• The sperms will be stored in the epididymis till their ejaculation.
