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
The Condition of the Working Class in England the industrial workers had lower incomes than their pre-industrial peers and they lived in more unhealthy and unpleasant environments. This proved to be a very wide-ranging critique of industrialisation and one that was echoed by many of the Marxist historians who studied the industrial revolution in the 20th century. Originally addressed to a German audience, the book is considered by many to be a classic account of the universal condition of the industrial working class during its time. The eldest son of a successful German textile industrialist, Engels became involved in radical journalism in his youth. Sent to England, what