BIOM20002 Lecture Notes - Lecture 68: Gestation, Adrenal Gland, Late-Onset Hypogonadism

• School: University of Melbourne
• Department: Biomedicine
• Course: BIOM20002
• Professor: All

Document Summary

Spermatogenesis produces spermatozoa - sertoli cell in seminiferous tubules. Testosterone - leydig cell (interstitial cell) in interstitial tissue. Estrogen and progesterone - theca and granulosa cells. Spermatogenesis: production of spermatozoa in sertoli cells in seminiferous tubules. Reception of sperm: time and environment must be correct. Lactation: preparation of breast during pregnancy is important for development in postnatal period. These are functional to a degree but need to be developed. Meiosis produces: primary gamete and secondary gamete that are haploid gamete. At the end of mitosis developing sperm cells are called spermatocytes. At puberty spermatagonium divide by mitosis --> spermatagonia --> another mitotic division. At puberty spermatagonium divide by mitosis --> spermatagonia --> another mitotic division gives --> primary spermatocytes --> first meiotic division --> secondary spermatocytes --> second meiotic division --> spermatids --> matures to spermatozoa. One daughter cell remains on outer edge of seminiferous tubules to keep the germ line. The other moves towards to lumen to produce spermatozoa.