All Acronyms. ESIM - Evaporative System Integrity Monitor [Internet]; Apr 16, 2017 [cited 2017 Apr 16]. Available from: https://www.allacronyms.com/ESIM/Evaporative_System_Integrity_Monitor.
The development of the gonads is part of the prenatal development of the reproductive system and ultimately forms the testes in males and the ovaries in females. The gonads initially develop from the mesothelial layer of the peritoneum. The ovary is differentiated into a central part, the medulla, covered by a surface layer, the germinal epithelium.
For girls, puberty begins when the specialized hormones tell the ovaries to begin producing another hormone, known as estrogen. Estrogen is responsible for most of the changes in a girlâs body during puberty. It causes her body to mature and prepare for pregnancy. In males, the follicle-stimulating hormone and the luteinizing hormone act on the testicles. The testicles, or testes, are two egg-shaped glands that produce sperm and male hormones.