1/13/2024 0 Comments Human male penis shapesSexual intercourse may be a medium of communication between humans older than language itself. In particular, the penis comprises the root, body, and glans. An analytical study of the vaginal secretions of an ovulating female for neuropeptides, such as pitocin and vasopressin, known to enhance pair bonding and protective behavior in the male, could be revealing. The penis consists of several major structures: Glans: The glans, or head of the penis, is the sensitive structure at the end of the corpus (shaft). The penis refers to the male sex organ, which makes up part of male sex anatomy. The deepest end of the posterior vagina is the cul de sac, which commonly contains a small amount of fluid. ![]() In the primate rear-approach coital position, the corona rubs against the anatomically posterior wall of the vagina, the most dependent surface when the woman is standing, and therefore the place more likely to collect vaginal secretions. Numerous studies have shown the vaginal mucosa to be secretory. It has been suggested that there may be a glans protecting feature of the foreskin, but it is entirely possible that its primary function is to absorb behavior modifying chemical messengers from the female. The mucous membrane of the foreskin adjacent to the glans is highly absorbent, as evidenced by the increased susceptibility of the uncircumcised male to HIV. I suggest the evolutionary function of the glans and its corona is not to scoop out semen but vaginal secretions, which are then absorbed by the encompassing foreskin. ![]() This intense acidity will kill all sperm not promptly reaching the safety of the cervical mucus. The healthy vagina has a low pH to protect it from invading organisms. It has been proposed that the shape of the glans with its distinctive corona facilitates the scooping out of previously deposited semen, enabling the subsequent deposition of other genetic material.
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