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  • Spermatogenesis is an important primary sex characteristics in humans and all other vertebrates .The process is coordinated and controlled under the influence of hormones. It starts with the onset

Spermatogenesis is an important primary sex characteristics in humans and all other vertebrates .The process is coordinated and controlled under the influence of hormones. It starts with the onset of puberty in humans and thereafter continues. The primordial cells within the embryonic testis which differentiate  into spermatogonia are the precursors of the sperms. These are located as in the outer walls of the seminiferous tubules where the process of spermatogenesis proceeds.

a)State the site of action of fsh in the testis and describe the action thereafter or a) Describe the role of LH in spermatogenesis.b) Name the cells and their products which undergo: 

i) Mitosis and differentiation 

ii) Meiosis I and Meiosis II 

During the process of spermatogenesis 

c) Name the accessory ducts that the sperms travel through seminiferous tubules to reach the epididymis 

Answers (1)

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Here are the answers to the following questions:

a) FSH acts on the Sertoli cells present in the seminiferous tubules of the testis. It stimulates these cells to secrete substances that support spermatogenesis and helps in the maturation of sperm cells.

b) Name the cells and their products which undergo:

i) Mitosis and differentiation
Cell: Spermatogonia
Product: Primary spermatocytes

ii) Meiosis I and Meiosis II

Meiosis I
Cell: Primary spermatocyte
Product: Secondary spermatocytes

Meiosis II
Cell: Secondary spermatocytes
Product: Spermatids

c) Name the accessory ducts through which sperms travel from seminiferous tubules to reach epididymis

Rete testis → Vasa efferentia → Epididymis

Posted by

ANKITA YADAV

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