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(a) Write the correct sequence of access...

(a) Write the correct sequence of accessory ducts in human testis after seminiferous tubules.
(b) Fill in the blanks from Leydig cells, Sertoli cells, Spermatids, Spermatozoa: Castration of male cattle leads to destruction of _______ cells which secrete testosterone hormone.

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(a) (Seminiferous tubules) `to` Rete Testis `to` Vas Efferens `to` Epididymis `to` Vas Deferens
(b) Leydig cells.
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A pituitary hormone which regulates the sertoli cells of the seminiferous tubules of the testes in males

Draw a diagrammatic sectional view of a human seminiferous tubule, and label sertoli cells, primary spermatocyte, sperm-atogonium and spermatozoa init. b) Explain the hormonal regulation of the process of spermatogenesis in humans.

Assertion: The regions outside the seminiferous tubules are called interstitial spaces, which contain Leydig's cells. Reason: Leydig's cells synthesise and secrete testicular hormones called androgens.

(a) Write the specific location and the functions of the following cells in human males . (i) Leydig cells (ii) Sertoli cells (iii) Primary spermatocyte (b) Explain the role of any two accessory glands in human male reproductive system.

Assertion : Formation of sperm takes place in seminiferous tubules of testes . Reason : Seminiferous tubules lined with male germ cells and sertoli cells (a) If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion . (b) If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion. (c) If Assertion is True but the Reason is False . (d) If both Assertion & Reason are False. .

(a) Draw a sectional view of a seminiferous tubule of human. Label sertoli cell, spermatagonia and leydig cell on it and write their functions. (b) Explain the role of pituitary and sex hormones in the process of sapermatogenesis.

(a) Draw a diagrammatic sectional view of a seminiferous tubule (enlarged) of human male and label (i) Spermatogenium, (ii) Sertoli cell, (iii) Primary spermatocyte. Write the function of each labelled part. (b) Differentiate between spermatogenesis and spermiogenesis.

Read the given statements . A. Leydig cells are located in interstitial spaces in testes B. Sertoli cells of seminiferous tubules provide nourishment to developing sperms. Select the correct option .

The ……………X……………cells of testes, which are present inside the seminiferous tubule of testes synthesize and secretes …………Y…………. hormones . Choose the correct option for X and Y.

Go through the following statements (i) Androgens are produced by the interstitial cells (ii) Sertoli cells give rise to germ cells (iii). Secretions of male accessory glands constitute the seminal plasma which is rich in fructose, calcium and certain enzymes (iv) The presence or absence of hymen is a very reliable indicator of virginity. Which of these are correct?

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