Testicle fetal abdomen to the inguinal ring and beyond to the inguinal canal and into the scrotum. In most cases (97% full-term, 70% preterm), both testes have descended by birth. In most other cases, only one testis fails to descend (cryptorchidism) and that will probably express itself within a year. The testes grow in response to the start of spermatogenesis. Size depends on lytic function, sperm production (amount of spermatogenesis present in testis), interstitial fluid, and Sertoli cell fluid production. After puberty, the volume of the testes can be increased by over 500% as compared to the pre-pubertal size. Testicles are
Users' Guides to the Medical Literature study valid? Evidence-Based Medicine Working Group. JAMA, 273(16), pp. 1292–1295. Available at: http://jama.ama-assn.org. Richardson, W.S. & Detsky, A.S., 1995. Users’ guides to the medical literature. VII. How to use a clinical decision analysis. B. What are the results and will they help me in caring for my patients? Evidence Based Medicine Working Group. JAMA, 273(20), pp. 1610–1613. Available at: http://jama.ama-assn.org. Richardson, W.S. et al., 1999. Users’ Guides to the Medical Literature: XV. How to Use an Article About Disease Probability for Differential Diagnosis. JAMA, 281(13), pp. 1214–1219. Available at: http://jama.ama-assn.org/cgi/doi/10.1001/jama.281.13.1214 Richardson, W.S. et al., 2000. Users’ Guides to the Medical