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Seminal Vesicles

How many semi...

Question

How many seminiferous tubules are approximately present in both the testes taken together?

A

250 - 2500

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B

2500 - 7500

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C

500 - 1500

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D

5000 - 10000

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Solution

The correct option is C 500 - 1500
Each testes has about 250 lobules. Each lobule has 1-3 seminiferous tubules.

So,
2 Testes $\times$ 250 lobules $\times$
1 - 3 Seminiferous tubules
= 500 - 1500
A human male has approximately 500-1500 seminiferous tubules in total.

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Similar questions

Q. Read the following statements (i to iv) and answer the following question.
(i) Each testes has highly coiled 250 compartments called seminiferous tubules.
(ii) Erection of the penis is due to the presence of special tissues that facilitates insemination.
(iii) Immunologically competent cells are also present in the interstitial spaces of seminiferous tubules.
(iv) Testes lie outside the abdominal cavity in a thin pouch like skin called scrotum.
(v) Bulbourethral gland is a single accessory gland.
How many of the above statements are incorrect?

Q. In a male, the total number of seminiferous tubules in both testicles are 1500. The most likely combination of testicular lobules and seminiferous tubules per lobule will be:

Q. Choose the correct answers from the alternatives given.
Place the following in the correct order concerning the passage of sperm from the testes to the outside of the body
1. ductus (vas) deferens, 2. rete testes, 3. seminiferous tubules, 4. Epididymis, 5. Urethra, 6. straight tubules

Q. Read the following statements and find out the incorrect statement.

A. Each testicular lobule contains one to three highly coiled seminiferous tubules in which sperm are produced
B. Each seminiferous tubule is lined on its inside by two types of cells called Leydig cells and Sertoli cells
C. The region outside the seminiferous tubules called interstitial space, contain small blood vessels and male germ cells (spermatogonia) which lead to sperm formation
D. In testis immunologically component cells are also present
E. The seminiferous tubules of the testis open into the rete testis through vasa efferentia

Q. Seminiferous tubules are found in

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