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
From the Earth to the Moon the first recorded use of this term in history. In H. G. Wells' 1901 novel "The First Men in the Moon" (also relating to the first voyagers to the Moon) the protagonist, Mr. Bedford, mentions Verne's novel to his companion, Professor Cavor, who replies (in a possible dig at Verne) that he does not know what Bedford is referring to. Verne returned the dig later when he pointed out that he used gun cotton to send his men to the moon, an actual substance. "Can Mr. Wells show me some 'cavourite'?", he asked archly. The novel (along with Wells' "The