Spermatogenesis, Biology

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

Posted Date: 10/3/2012 7:23:59 AM | Location : United States







Related Discussions:- Spermatogenesis, Assignment Help, Ask Question on Spermatogenesis, Get Answer, Expert's Help, Spermatogenesis Discussions

Write discussion on Spermatogenesis
Your posts are moderated
Related Questions

What mechanism of regulation is utilized in maintaining homeostatic balance of sugar?

State the term - Early therapeutic Intervention Since outcome may be ameliorated by well timed and appropriate treatment, the prevailing belief is that dysfunction should be id

Q. What is an antigen? Antigen is any substance, infectious or particle agent recognized as foreign to the body. The contact of the antigen with the body promotes a defense rea

meaning of the law of inertia

Fishes- Regeneration in Vertebrates Several different parts of the fish body will re-grow. Plucked scales are promptly replaced by new ones and amputated gill filaments can re

Neonatal  hypoglycaemia Hypoglycaemia is a metabolic condition of newborn piglets that develops in first few days of life due to decreased caloric intake and increased cataboli

Where in the cell can ribosomes be found? What is the main biological function of ribosomes? Ans) Ribosomes can be found free in the cytoplasm, adhered to the outer side of the

why uracil is present in rna and thymine in dna?

Dormant Vegetative Structures You have learnt that light a period of chilling or application of gibberellin often breaks seed dormancy and stimulates seed germination. Vegetat