Cryptorchidism (over 90% in some studies). Even after orchiopexy, these may also affect sperm maturation and motility at an older age. The most common diagnostic dilemma in otherwise normal boys is distinguishing a retractile testis from a testis that will not descend spontaneously into the scrotum. Retractile testes are more common than truly undescended testes and do not need to be operated on. In normal males, as the cremaster muscle relaxes or contracts, the testis moves lower or higher ("retracts") in the scrotum. This cremasteric reflex is much more active in infant boys than older men. A retractile testis high in
Stowaway to the Moon (film) cabin and perform other chores. Once in lunar orbit, mission commander Rick Lawrence and lunar module pilot Dave Anderson prepare to undock from the command module and descend to the surface. E.J. notices that Pelham is ill, but the astronaut insists that it is just space adaptation syndrome and asks E.J. to say nothing to the others. Lawrence and Anderson depart in the lunar module "Little Dipper", but Pelham's condition deteriorates rapidly. With the ground crew's help, E.J. cares for the ailing astronaut and helps locate the lunar module, which has landed far off course. Despite intermittent telemetry, the lunar