Tag: erection

Posted in Psychology & Medicine

Priapism

Posted on by Jinavie

The penis is an interesting organ that has the ability to harden, despite being made of spongy material. Contrary to the popular slang for erection (boner), the (human) penis contains no bone.

Instead, it is made of a pair of cylindrical, spongy tissue called the corpus cavernosa, and a smaller spongy tube that surrounds the urethra called the corpus spongiosum. An erection happens when the body redirects blood flow to fill these spongy tissues, engorging them with blood. As it expands, the corpora become rigid and tense as they are wrapped by a thick, dense tissue called the tunica albuginea. The tension compresses the surrounding veins, trapping the blood and keeping the penis erect. Once stimulation slows and less blood flows into the penis, the blood drains via the venous system and the erection withers.

A common problem with erections is that of erectile dysfunction (unable to become erect or sustain it), which is well-known to the lay person. However, a lesser-known, opposite problem is priapism.

Priapism refers to an erection that will not die down even when the stimulation has ended, or with no stimulation at all. Although this may not sound like a medical problem other than causing embarrassment, priapism can be a very painful condition and depending on the cause, the penis can become starved of fresh blood (ischaemic), resulting in permanent damage to the cells and tissue.

Priapism is named after the Greek god, Priapus. He was a minor god worshipped in rural Asia Minor as a god of fertility, livestock and gardens. Priapus is depicted as having a permanent erection to symbolise fertility, but ironically, was cursed with impotence by Hera while still in the womb. His massive, erect penis was a popular theme for Roman erotic art and can be seen in various pieces of ancient art.

Priapism can arise from various causes such as blood disorders, medications and spinal cord damage. The problem is usually due to blood being trapped in the penis, or the nervous system continuously stimulating blood flow into the penis. As the main issue is engorgement with blood, the acute treatment for priapism involves decompressing the penis by using a needle to aspirate (draw out) blood directly from the corpus cavernosa.

Posted in History & Literature

To End All Wars

Posted on by Jinavie

In his play Lysistrata, Greek playwright Aristophanes gives a comic account of one woman’s extraordinary mission to end the Peloponnesian War – a 30 year old war between Athens and Sparta. How did one woman bring an end to such a deadly war?

In the play, Lysistrata (the female protagonist) becomes sick and tired of men treating women like simplistic hedonists incapable of functioning on their own. She believes that the war is a result of irrational men making stupid decisions and the long war is a waste as young, nubile women are aging away. She holds a convening of the women of various city states and proposes that the women must rise up to stop the war. Lysistrata’s plan is simple: withhold sex from the men until they cave (i.e. a sex strike). The women are reluctant at first, but agree to join her. They then take over the acropolis of the city, setting up a safe haven for women, barring any man from entering.

The men initially scoff at this revolution and try repeatedly to lay siege on the acropolis. However, they fail and the women continue to not provide any sexual pleasures to any male. The men constantly make snide comments about how women are hysterical and only seek pleasure, but sooner or later, they become desperate for sex. One by one, desperate men (sporting “burdens”, i.e. erections) come to the acropolis, pleading for relief (funnily, some women desert the acropolis in desperation for sex as well). The women take the men in, but only to tease them and leave them disappointed.

Eventually, the men (of both Athens and Sparta) cave and surrender, agreeing to end the war. There is a hilarious scene during the peace talks where Lysistrata brings out a stunning young girl named Reconciliation in front of the men, quashing any complaints or objections. Even the men who protest against the women’s demands are overcome by their lust and want(/need) for sex. Once peace is declared, the men and women all come together in the acropolis for singing and dancing, celebrating the women’s success in ending the war.

Although the play is only a comic exploration of the battle of the sexes, it clearly shows the power women have over men, and how they can use that power to easily control men.

Posted in Psychology & Medicine

Hanging

Posted on by Jinavie

Hanging is one of the most popular methods of execution and suicide throughout the ages. It is typically performed by fashioning a noose (most commonly with the eponymous hangman’s knot), placing it around the victim’s (or own) neck. The person then falls from a short height (e.g. dropped from a stand or stepping off a stool), upon which the force of the body pulling down causes the noose to tighten. This can kill a person via two ways. Firstly, if the force of the drop and the knot is strong enough, the sheer force of the noose tightening and the person being suspended by their neck will cause their neck to break. This causes spinal cord injury at the cervical level, where the brainstem lies. When the brainstem is damaged, the person loses control of autonomic processes such as breathing, causing instant death. Secondly, if the neck does not break, the person will be strangulated by the noose. This will kill the person through either choking (from airway obstruction) or brain ischaemia (as the carotid arteries are cut off). Pressure on the carotid artery may also cause something called a carotid reflex, where powerful nervous signals cause the heart to beat so slowly that it stops.

It is said that whether a person dies a quick, clean death via neck fracture or a slow, painful death via strangulation depends on how good the knot is. A hangman’s knot is made up of a loop with a series of coils above it. The more coils there are, the more friction it adds to the knot, making the noose harder to pull closed. A true hangman’s knot is defined as thirteen coils, which provides enough resistance to cause a neck fracture when a person falls. If there are fewer knots than that, the knot will tighten too quickly around the neck and not provide enough resistance to cause a neck fracture. This leads to strangulation, which is far more excruciating and a very inhumane way to die. If there are too many knots, there will be too much resistance and there is a risk of decapitation, leading to a very messy situation.

In forensic medicine, there are certain signs that reveal a victim was hung. For example, the C2 spine (second vertebrae in the neck) will exhibit a hangman’s fracture, where there is fractures on both sides. Fracture of the hyoid bone (a small bone below the chin) is also a classic sign of hanging. There will also be bruises along where the noose was and every sphincter would be open (which leads to immediate voiding of the bowels and bladder at the time of death). If the person died of strangulation rather than neck fracture, they will show signs of asphyxiation, such as blue lips (cyanosis). Another interesting result of hanging is something called a death erection. As the name suggests, it is when a corpse is found with an erection, most likely due to hanging. This is probably caused by the noose crushing the cerebellum, causing a reflex erection. The same phenomenon has been observed in women as well.