Assuming penis is required, the following results were found.
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Male Infertility: Causes and Investigations
a lubricating mucus. This mucus serves as a prelude to ejaculation, ensuring smooth passage for sperm through the urethra. Penis: The external organ of copulation, the penis plays a dual role: it houses the urethra (through which urine and semen exit)...
By Dayyal Dg.
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