Regulation of testicular, Biology

Regulation of Testicular

Activity The production of spermatozoa is under the influence of pituitary hormones and of androgens derived from the testis. The testicular tissue involute in the experimental animals deprived of pituitary hormones. FSH is required for the differentiation of spermatogonium into spermatozoa and LH (also known as interstitial cells stimulating hormone (ICSH) in males) to stimulate the Leydig cells for the production of androgens.

The increased levels of androgens in the blood suppress the synthesis and secretion of gonadotropins in the pituitary.You have studied earlier that the time required for the spermatogonia to differentiate into spermatozoa is a biologic constant, varying with the species and strain, which cannot be altered by hormones and other factors. On the other hand, the number of spermatozoa produced is dependent upon pituitary gonadotropins, androgens, nutritional factors. Temperature, light etc.

Posted Date: 1/16/2013 7:36:39 AM | Location : United States







Related Discussions:- Regulation of testicular, Assignment Help, Ask Question on Regulation of testicular, Get Answer, Expert's Help, Regulation of testicular Discussions

Write discussion on Regulation of testicular
Your posts are moderated
Related Questions
State the Variety of chemical and biological reactions Variety of chemical and biological reactions takes place leading to the formation of the solution phase. If we analyse th

Q. What is hematosis? In humans where does hematosis occur? Hematosis is the oxygenation of the blood, venous blood (oxygen-poor) after hematosis is transformed into arterial b

Q Sponge identity card. How are sponges characterized according to example of representing beings, basic morphology, type of symmetry, embryonic (germ) layers and coelom, digestive

How does the sodium-potassium pump present in the cell membrane work? What is the importance of this protein for the cell? The sodium-potassium pump is the transport protein th

Explain the Shear or Moment Diagrams Shear diagram changes by magnitude of the load. Shear is constant along unloaded portions of a beam For a point load, the she

ADOLESCENC E  - It is the period of growth from the onset of puberty to the completion of growth & maturity. It extends between 12- 20 yrs. It is a period of rapid physical

Q. What are the stages of mitosis? Mitosis involves replication of DNA and its separation into two new daughter cells. Whereas only four phases of mitosis are often listed. Ent

Q. Fluids requirement in chronic diarrhoea? Fluids: Intake should be liberal to minimize the risk of dehydration. Remember we read about fluid management in this section before

What types of individuals in a population are represented by the two ends of a bell curve?

Depth and Currents Depth The sea is very deep varying in different regions. Generally life extends to all depths but is confined more to the continental shelf and