Penis and male reproductive system
The Male Reproductive System-The Penis The penis is a very complex organ, which is part of the male reproductive system. In this essay, I will explain to you the function and how it works with other organs within this system. ... The outer foreskin layer is a continuation of the skin of the shaft of the penis. ... The reddish or purplish glans or glans penis (head of the penis) is smooth, shiny, moist and extremely sensitive. The frenulum, or frenum, is a connecting membrane on the underside of the penis, similar to that beneath the tongue. ... When the penis is not erect, it tightens to narrow the foreskin opening. ... That is half the total skin of the penis. ... It protects the glans penis from friction and abrasion throughout life. ... During foreplay and intercourse, the most important components of physical erogenous stimulation of the penis are sensations from the foreskin, the frenar band and the glans (head of the penis). ... Emotional excitement definitely is an important component of sexual enjoyment, and it intensifies the man’s perception of any physical sensations from his penis. ... After circumcision, the foreskin of the penis has been cut away. ... All circumcised men have an annular scar on the shaft of the penis. ... During intercourse then loose skin of the intact penis slides up and down the shaft of the penis, stimulating the glans and the sensitive erogenous receptors of the foreskin itself. ... In addition, since more of the loose skin of the penis remains inside the vagina, the woman’s natural lubrication is not drawn out to evaporate largely, which makes sex easier without using artificial lubricants. ... When unfolded, the prepuse is large enough to cover the length and circumference of the erect penis and acts as a natural sheath through which the shaft glides during coitus. ... I will now discuss the non-sexual function of the penis, which is for urination. The urethra is a tube that runs from the tip of the penis to the back of the bladder. The Urethra is the “backbone” of your penis. It is avital part of both functions of your penis. ... This blood vessel is the central artery that brings blood into the penis. The erectile tissue in the penis is surrounded by shin sheaths. ... When your erections begin a huge rush of blood is pumped into your penis. ... First, the arteries leading to your penis open wide to let more blood flow in, the blood then floods into the main arteries within the erectile tissue. ... It is the pressure of your erectile tissue against the sheaths that makes the penis hard. The expanding erectile tissue cuts off the flow of blood out of the veins in the penis. With so much blood coming into the penis and almost none flowing out, the erections are secure. Now the blood in your penis is trapped and will stay there until your erection ends.