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

Properties of cardiac cells, Properties of Cardiac Cells Automaticall...

Properties of Cardiac Cells Automatically: ability of the heart to initiate impulses regularly and spontaneously. Excitability: ability of cardiac cells to respond to

Hyaluronic acid, H Y ALURONI C ACID It is formed by alternating u...

H Y ALURONI C ACID It is formed by alternating unit of D-glucuronic acid and N-acetylglucosamine. Hyaluronic acid acts as animal cement between adjacent animal cells

Planning of nursing care - hypospadias, Planning of Nursing Care Planni...

Planning of Nursing Care Planning of the nursing care depends on the decision of the surgery. The surgery may be performed in two stages depending upon the degree of the d

Explain subphylum vertebrata, Subphylum  Vertebrata : (41,700 species, th...

Subphylum  Vertebrata : (41,700 species, the vertebrates) Vertebral column of bone or cartilage, head is well developed, heart is ventrally situated dorsal aorta, two pairs of

Lymph, Why lymph is also called middle man of body

Why lymph is also called middle man of body

Explain the pseudomonas - characteristics of bacteria, Explain the Pseudomo...

Explain the Pseudomonas - Characteristics of Bacteria? Pseudomonas are aerobic, gram negative, straight or slightly curved rods that are motile by polar flagella. Many species

Tubercular meningitis , Tubercular Meningitis (TBM) Tubercular meningi...

Tubercular Meningitis (TBM) Tubercular meningitis is a serious complication of childhood tuberculosis. It usually occurs secondarily to primary infection with tuburculosi

Respiratory system of the phylum annelida characterized, Q. How is the resp...

Q. How is the respiratory system of beings of the phylum Annelida characterized? Respiration in annelids can be branchial or cutaneous. Cutaneous respiration takes place due to

Explain the nervous system characterized in echinoderms, How are the symmet...

How are the symmetry and the nervous system characterized in echinoderms? Adult echinoderms, with cnidarians, are the animals that present radial symmetry, i.e., their body str

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