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प्रश्न
Write two major functions of testis.
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उत्तर
- They produce male gametes called spermatozoa by the process of spermatogenesis.
- The leydig cells of the seminiferous tubules secrete the male sex hormone called testosterone. Testosterone aids in the development of secondary sex characteristics in males.
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संबंधित प्रश्न
List two functions performed by the testis in human beings.
What is the full form of IVF?
Give appropriate biological/technical terms for the following:
The accessory gland in human males whose secretion activates the
sperms.
Define Spermatogenesis.
Put a tick mark (✓) against the correct alternative in the following statement:
The testes are located within the:
Distinguish between the following pair of terms:
Egg and sperm.
Why is it important that a very large number of sperms should be present in the semen ?
List the structures, in their correct sequence, through which the sperms must pass from the time they are produced in the testes to the time they leave the urethra.
Fill in the blank:
Male gemetes are produced inside _______.
Describe the functions of the following:
Prostate gland
Given below is the schematic diagram of the sectional view of the human male reproductive system.
Name the parts numbered 1-11.
Choose the correct answer:
Removal of testes is called ____________
Find an odd one out.
How are the sperms formed?
How much semen is generally present in seminal fluid?
In the male reproductive system, the vasa deferens joins the ____________.
lf vasectomized man attempts to rape, then the presence of which of the following confirms it?
The ________ secrete testosterone after puberty.
ln the reproductive system of a male human being, the ejaculatory ducts open into ________.
Which of the following produces sperms in spermatogenesis?
Urethral meatus refers to the ______.
Secretions from which one of the following are rich in fructose, calcium, and some enzymes?
Ejaculation of human male contains about 200 - 300 million sperms, of which for normal fertility ______% sperms must have normal shape and size and at least ______% must show energetic motility.
Seminal plasma, the fluid part of semen is formed by ______.
The Leydig cells as found in the human, body are the secretory source of ______.
______ is the smallest cell in males.
Draw a neat labeled diagram of T.S. of testis.
What is the significance of the testes being located in scrotal sacs outside the abdomen?
