What effect would an acetylcholine competitor have on
erection of the penis? Explain your answer
The penis is the male copulatory organ that facilitates sexual intercourse. When it comes to non-sexual acts, like urination, the structure is flabby, but when it comes to sexual stimulation, it's turgid and firm. When the organ is erect, its rigidity enables it to enter the vaginal wall and introduce semen into the female genital system, thereby fusing with the egg via a process called fertilization.
The glans penis is the head portion that is located at the tip of the penis, has a large proportion of nerve endings (around 4000 nerve endings), characterizing the extremely sensitive skin that determines the possibility of erection and ejaculation. At synapses between the neurons and muscle cells, known as neuromuscular junctions, motor neurons secrete usually acetylcholine, whose presence has a great impact on penile erection.
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