How does the body react when a man has an erection? Male erections need these four basic support

Men must be familiar with erections, but do you know the specific knowledge of erections? A normal man has an average of 7200 erections in his life. Do you know what four secret organizations are hidden behind every seemingly casual, natural and easy erection?

1、 The blood system and blood supply of the penis

The penile blood vessels themselves and the blood flow supply and celebration play an extremely important role in the penile erection mechanism, because the essence of penile erection is the vascular hyperemia reaction, and the failure of these blood supply systems will certainly cause penile erection. In addition, if the arteriovenous traffic support is not closed when erecting, it will also cause impotence.

The penis is like an amazing natural hydraulic mechanical device. The physiological reaction of erection and disappearance is manifested by the huge changes in the hemodynamics of the inflow and outflow of organs under a certain volume. According to the size of the penis, the increase of blood volume during erection is about 80-200 ml. When the penis is erect, the internal artery of the penis expands, and the blood flow into the penis is more than 8 times larger than when the penis is relaxed. When it reaches 120 ml/min (the pressure in the sponge increases to about 75 mm Hg), it will cause an erection. After erection, it only needs about 60% of the original injection rate or 70 ml/min.

2、 Sound nerve reflex

Penile erection is a reflex. Stimulation and conditioned reflex stimulation from nerve endings of many sensors can cause penile erection reflex. The nerve components involved in the control of erectile function include all levels of structures from the upper to the cerebral cortex and from the lower to the neuromuscular end of the penile vascular wall.

Like the cerebral cortex, there are erectile and ejaculatory centers in the diencephalon, hypothalamus and lumbosacral spinal cord of the subcortical axis with functional centers, but there are also synergistic effects between the thoracolumbar and sacral centers, and there are close connections between the centers. The sensory and motor nerves of the central spinal cord are related to the reproductive organs.

The sexual excitement of acquired conditioned reflex from the cerebral cortex spreads to the subcortical center and the spinal cord center to cause penis erection, which is called psychological erection. The erection formed after the stimulation of the penis directly causes the excitement of the erection center is called reflex erection. Both types of erections are commanded by the erectile center located in the spinal cord, and the command is transmitted and withdrawn through the nerve.

3、 Normal endocrine function