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Old 09-04-2006   #29 (permalink)
baseball99
baseball99 is offline

Quote:
Originally Posted by tightnads
Though I have been in the Question mode, the thread seems to have been wound around a couple of lamp posts, so I jumped into the research mode with some of offered terms and two web searches.

The nads hang from the spermatic cord and are pulled up and down in the scrotum (and in our special interest, into the inguinal canal) by two muscles systems. "The cremasteric muscle is part of the spermatic cord. When this muscle contracts, the cord is shortened and the testicle is moved closer up, called the cremasteric reflex, for temperature control and in response to stress (an evolutionary effort to protect them in a fight).

So, toss 'em the keys and let 'em go where they want, as long as they come back in time for school. And if they have any interesting fun, let us know!

The testicles can also be lifted voluntarily using the pubococcygeus muscle (controls urination, exercised with Kegels), which partially activates related muscles. This can sometimes be triggered by tightening or sucking in the stomach or abdomen.

the cremasteric reflex is one that every male medical student goes home and tries as soon as they learn about it. you lightly stroke the inside of the thigh and the testicle on that side raises up