The testes have to be kept at a constant temperature, a bit below the body temperature. In Winter, the testes will move closer to the body to keep warm, whilst in Summer they will move away to keep cool! Weird huh? It's almost like they have a brain of their own.
Cremaster Muscle
controls your body and your movements
levator ani
skeletal muscle
The left hemisphere, or side of the brain controls the right side of the body and the right hemisphere, or side controls the left side of the body.
The scrotum is the structure that regulates the temperature of the testis. It contracts in the cold, drawing the testicles closer to the body increasing their warmth, and when it is warm it relaxes allowing the testicles to fall farther from the body, thus cooling them.
There is a muscle sheath in the scrotum which lowers the scrotum when the temperature is high and hugs it tighter to the body when the temperature is low.
The 'ball sack' in males refers to the scrotum, which is a protuberance of skin and muscle that contains the testicles and is divided by the septum. The purpose of the scrotum is to keep the temperature of the testes slightly lower than the rest of the body. Although men have two testicles, they only have one scrotum.
The testicles are contained in the scrotum.
The scrotum is the sack of skin, directly behind the penis, that contains the testicles. So the answer is NO, the scrotum is outside the body.
By the question if you mean is the scrotum found on the male body, the answer is yes. If the question means where is the scrotum found in the male body, the answer is it is found between the hanging between the penis and the anus, between the legs.
Yes, the cremaster muscle moves the scrotum and thus the testicles up and down, according to temperature. The testicles are free hanging, so they can move back and forth within the scrotum too.
Your testes descend from abdominal cavity to the scrotum. There is difference of one degree Celsius from body. It is lower in the scrotum. This one degree Celsius lower temperature is necessary for production of the sperms.