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प्रश्न
Define spermiation.
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उत्तर १
Spermiation is the process of releasing mature spermatozoa. In this, spermatozoa are shed into the lumen of the seminiferous tubule for transport.
उत्तर २
After spermiogenesis, sperm heads become embeded in sertoli cells from which they obtain their nutrition and finally get released into the lumen of seminiferous tubules. This process of release of mature sperms from sertoli cells is called spermiation.
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संबंधित प्रश्न
With the help of diagrammatic representation, explain the process of gametogenesis
Draw a sectional view of human ovary and label the different follicular stages, ovum and Corpus luteum.
The following is the illustration of the sequence of ovarian events (a − i) in a human female
(i) Identify the figure that illustrates ovulation and mention the stage of oogenesis it represents.
(ii) Name the ovarian hormone and the pituitary hormone that have caused the above mentioned event.
(iii) Explain the changes that occur in the uterus simultaneously in anticipation.
(iv) Write the difference between ‘c’ and ‘h’.
(v) Draw a labeled sketch of the structure of a human ovum prior to fertilization.
Male and female gametes are ______.
Briefly describe the process of spermatogenesis.
Name the hormones involved in regulation of spermatogenesis.
Define spermiogenesis.
Multiple choice question.
The given figure shows human sperm. Various parts of it are labelled as A, B, C, and D. Which labelled part represents acrosome?
Explain the structure of secondary oocyte.
Describe the process of oogenesis in human female.
At the time of birth, there are _______________ oocytes in the ovary of a female foetus.
Give scientific reason.
Older women are more likely to give birth to children with some abnormalities.
Identify the given image and label its parts marked as a, b, c and d
Which of the following enter the maturation phase of oogenesis?
Identify the diploid cell.
Identify the longest period of menstrual cycle.
How many sperms are formed from a secondary spermatocyte?
By which process sperms released from the seminiferous tubules?
Acrosome is a type of ______.
Which of the following contains the actual genetic part of a sperm?
Mark the odd one.
What does the figure represent?
The region of the root tip whose cells undergo rapid elongation and enlargement and are responsible for the growth of the root in length is called the:
Human milk differs from cow's milk because human milk contains:
How many primary oocytes produce one oogonia?
During reproduction, the chromosome number (2n) reduces to half (n) in the gametes and again the original number (2n) is restored in the offspring. What are the processes through which these events take place?
How many spermatozoa are formed from one secondary spermatocyte?
During oogenesis the meiotic division is arrested at ______ before fertilization.
