It is the male sexual or copulatory organ, it has a cylindrical body and the disc tip and is made up of the glans, which at the apex of the urethral meatus, the foreskin that is the part of the penis that covers the glans when it is not in position erection. It shows a length of about 12 centimeters in a flaccid state and about 16 centimeters in an erection state.
In its internal part we can distinguish the corpora cavernosa and the corpus spongiosum of the urethra, which are both erectile formations, whose arrangement and structures allow the penis to reach its elongated and erect state during intercourse. Reaching its this by filling with blood, for which it is lacking in baculum or bones.
The structure of the human penis is made up of three columns of erectile tissue: two corpora cavernosa that are located next to each other on the top of the penis and the corpus spongiosum that is located on the bottom. The glans is the most sensitive area, this being the end of the spongy body and it is the widest part of it. It has a cone shape and is covered by a loose skin fold called the foreskin that is pulled back to expose the glans..
The lower area of the penis where the foreskin is attached is called the frenulum. The urethra is the passage of urine and seminal flow, which passes through the corpus spongiosum and ends in an orifice called the urinary meatus, being at the end of the glans. Sperm is seminal fluid and which is produced in the testicles and stored in the epididymis, during ejaculation the sperm is propelled to the vas deferens, which are two muscular tubes surrounded by smooth muscles measuring about 45 centimeters each in length. Connected to the epididymis that the contract expel semen to the ejaculatory ducts.
Being the fluids added by the seminal vesicles and joining the urethra inside the prostate together with the bulbourethral glands, they adhere secretions and there is the final step for the semen to leave the semen through the penis producing ejaculation when they reach the male orgasm.