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प्रश्न
In human males, the testes lie in the scrotum, because it helps in the
विकल्प
process of mating
formation of sperm
easy transfer of gametes
all the above
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उत्तर
formation of sperm
Explanation -
In human males, sperm formation requires a temperature lower than the normal body temperature. So, testes are located outside the abdominal cavity in scrotum.
APPEARS IN
संबंधित प्रश्न
Differentiate between the Tubectomy and Vasectomy (Part cut and tied)
Define Spermatogenesis.
Put a tick mark (✓) against the correct alternative in the following statement:
Identify the stage which is formed after the fertilisation of the egg by the sperm?
Define the following term:
Hernia
Draw a diagram of a mature human sperm. Label any three parts and write their functions.
In humans, sperm production occurs in the organ ______.
The vas deferens opens into urethra as ______.
The ________ secrete testosterone after puberty.
Each testis is connected to the wall of scrotum by short. fibromuscular band called ______.
Match between the following representing parts of the sperm and their functions and choose the correct option.
| Column A | Column B | ||
| A. | Head | i. | Enzymes |
| B. | Middle piece | ii. | Sperm motility |
| C. | Acrosome | iii. | Energy |
| D. | Tail | iv. | Genetic material |
Seminal vesicles are located in ______.
The shared terminal duct of the reproductive and urinary system in the human male is ______.
The Leydig cells as found in the human, body are the secretory source of ______.
______ is the smallest cell in males.
Small sac-like muscular structures that enclose testes.
Match the items given in Column I with the most appropriate ones in Column II and rewrite the correct matching pairs:
| Column I | Column II | ||
| (a) | Leydig Cells | 1. | Lack of thyroxine in children |
| (b) | Stoma | 2. | 12 pairs |
| (c) | Ova | 3. | Testosterone |
| (d) | Cranial nerve | 4. | Diffusion of respiratory gases |
| (e) | Cretinism | 5. | Haploid cells |
| 6. | 31 Pairs | ||
| 7. | Diploid cells |
The canal through which each testis descends into the scrotum just before the birth of a male baby is ______.
Choose the odd one out from the group of terms given below and write the category for the remaining terms:
What is the whitish, viscous fluid secreted by glands along with spermatozoa called?
What is the enlarged tip of the penis called?
