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Why are testes in human male located outside the body |
| Answer» The testicles located outside of the body because the temperature of dangling testes needs be lower than the body temperature to optimize sperm production. During the gestation the testes descend from the chest across the whole body cavity to get outside of the body and this passage weakens the wall structure resulting in a higher propensity to hernias. Indeed, the sperm sensitivity is extreme, clearly affecting our reproductive chances,if the testes heat up by as little as 2°C, sperm formation is adversely affected. Sperm count will drop, the number of normal sperm will fall and the number of abnormal sperm will increase. Semen quality is naturally lower in summer compared with winter. | |