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

Define resistant starch from the physiological perspective, Define Resistan...

Define Resistant Starch From the physiological perspective? RS is defined as the sum of starch and products of starch degradation not absorbed in the small intestine of healthy

Candidiasis (moniliasis or thrush), C a n d i d i a s i s (monili...

C a n d i d i a s i s (moniliasis or thrush) C and i d a albicans , the causative fungus of the disease, is widespread in the environment and is usually present

Determine the appearance of a plant cell, Determine the appearance of a pla...

Determine the appearance of a plant cell when water is plentiful? When water is plentiful, the central vacuole expands. The other organelles are pushed against the plasma me

Mitoses and meosis, how do mature sperm differ from those that are not full...

how do mature sperm differ from those that are not fully developed

Roots, secondary growth in roots

secondary growth in roots

Does the entire human genome into nucleosomes, How many of each type of cor...

How many of each type of core histone would it take to wrap the entire human genome into nucleosomes? How has evolution solved the problem of producing such a large number of prote

How are inhalation and expiration carried out, Q. How are inhalation and ex...

Q. How are inhalation and expiration carried out? The diaphragm exclusive of mammals and the intercostals muscles can contract or relax varying the volume of the thorax the com

Define the stock solutions and distilled water, Assume that you have 1M sto...

Assume that you have 1M stock solutions of NaCl, KCl, and CaCl2. If the ion concentrations in human plasma are 120 mM Na+, 12mM K+, and 2 mM Ca+, compute the volumes of the stock s

Explain electron transport chain, Explain Electron transport chain El...

Explain Electron transport chain Electron transport chain :Transport of high-energy electrons through a series of carriers in mitochondria.

Why male and female gametophytes are independent, Male and female gametophy...

Male and female gametophytes are independent and free-living in: 1. Mustard 2. Castor 3. Pinus 4. Sphagnum Sphagnum

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