Jurassic- First birds and angiosperms

TLS Online TPP Program

#Id: 6586

#Unit 7. System Physiology – Animal

Hormonal factors that stimulate spermatogenesis:

Testosterone

Luteinizing hormone

Follicle-stimulating hormone

Estrogens

Growth hormone

TLS Online TPP Program

#Id: 6587

#Unit 7. System Physiology – Animal

Testosterone, secreted by the Leydig cells located in the interstitium of the testis, is essential for growth and division of the testicular germinal cells.

TLS Online TPP Program

#Id: 6588

#Unit 7. System Physiology – Animal

Luteinizing hormone, secreted by the anterior pituitary gland, stimulates the Leydig cells to secrete testosterone

TLS Online TPP Program

#Id: 6589

#Unit 7. System Physiology – Animal

Follicle-stimulating hormone, secreted by the anterior pituitary gland, stimulates the Sertoli cells; stimulates, the process of spermiogenesis

TLS Online TPP Program

#Id: 6590

#Unit 7. System Physiology – Animal

Follicle-stimulating hormone, secreted by the anterior pituitary gland, stimulates the Sertoli cells; stimulates, the process of spermiogenesis

TLS Online TPP Program

#Id: 6591

#Unit 7. System Physiology – Animal

Growth hormone is necessary for controlling background metabolic functions of the testes, specifically promotes early division of the spermatogonia themselves