Spermatogenesis, Biology

Assignment Help:

SPERMATOGENESIS

  1. The process of maturation of reproductive cells in the testes of male to form spermatozoa (sperm) is known as spermatogenesis.
  2. The testes are formed of numerous tubular seminiferous tubules, held together in mesocharium connective tissue.
  3. Each seminiferous tubule shows an orderly arrangement of cells undergoing different phases of maturation.
  4. The peripheral layer of cells next to the basement membrane is formed of spermatogonia or the sperm mother cells and is often described as germinal epthelium.
  5. The spermatogonia undergo spermatogenesis to produce sperm.
  6. In between the groups of spermatogonia are tall columnar cells the sertoli cells.
  7. The spermatids undergoning differentiation into psermatonourishment to the developing sperm.
  8. Interspersed in the connective tissue is between the seminiferous tubules are present groups of interstitial cells or leyding cells which secrete male hormone (Testosteron).
  9. In vertebrate sperm production hologonic type (towards the central cavity).
  10. In insect sperm production is telogonic type (towards periphery).

1915_testis.png

 

T.S. of Testis

1014_seminiferous tubule.png

T. S. of Seminiferous tubules


Related Discussions:- Spermatogenesis

Effect of alcohol on human body, EFFECT OF ALCOHOL - 1 .       EFFECT...

EFFECT OF ALCOHOL - 1 .       EFFECT ON NERVOUS SYSTEM - Alcohol has an anesthetic effect on nervous system. It affects orientation, alertness, coordination, judgement

Immunolocalization, uses and advantages and disadvantages of immunolocaliza...

uses and advantages and disadvantages of immunolocalization

Explain the differance between savanna and desert, Explain the differance b...

Explain the differance between savanna and desert? Savanna : Savanna is characterized by relatively low rainfall and pronounced dry seasons. This type of climate produces a b

Explain the term trans fatty acids, Explain the term Trans fatty acids? ...

Explain the term Trans fatty acids? Plant derived fats and oils contain cis-fatty acids. You may recall reading about the cis and trans isomers in the Nutritional Biochemistry

Preservation of species diversity, Q. Preservation of species diversity? ...

Q. Preservation of species diversity? Genetic diversity is, thus, important for the preservation of species diversity, and hence biological diversity. A knowledge of the variab

Soil temperature, Soil Temperature Soil temperature is known to influe...

Soil Temperature Soil temperature is known to influence water absorption and ultimately transpiration to a considerable extent. In many plants water absorption is reduced shar

Sex determination - reproduction, Sex Determination - Reproduction Se...

Sex Determination - Reproduction Sex, whether an individual will be a male or a female is determined at fertilisation, and this directs and controls all the later processes i

Fluoride - mineral elements, FLUORIDE It is mostly available in drin...

FLUORIDE It is mostly available in drinking water. Fluoride is essential for the formation of enamel of the teeth. Deficiency of fluoride causes weakness of enamel.

Relationship between the ovulation and menstrual cycle, Q. What is the rela...

Q. What is the relationship between the ovulation and menstrual cycle? Ovulation is the releasing of the female gamete from the ovary and Ovulation is a periodical event that o

Tunnel subvalvar stenosis, Tunnel Subvalvar Stenosis :  This variety ...

Tunnel Subvalvar Stenosis :  This variety is less common and extends from sub aortic area for a variable length of 10-30 mms (tunnel stenosis). In the severe variety, the tun

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd