Danish physiologist Jim.Wagner was invited to the UK for consultation in 1974. At that time, the British bulls with three people were sent to the Royal Medical College.Although the behemoth looks strong, it is not known for their stubborn refusal to mate, even when they are together with the cow with the most excited sexual desire.People also invited psychiatrists to consult.Despite the divergent opinions, the bulls have always done my best, "sitting without chaos", and finally had to bear the pain to slaughter these expensive cattle.After anatomy examination, people were surprised to find the problem on the sponge body and venous emissions system. There were some cracks on the white membrane covering the sponge body to communicate with the venous blood vessels.Erection and due hardness.Unexpectedly, the sacrifice of these bulls actually got an important leap for people's understanding of impotence.
According to literature, vascular impotence is the highest incidence in organic impotence. Vascular impotence can be further divided into three types: arterial, intravenous, and dynamic vein mixed. Among them, venous impotence is the most.Following, it accounts for the vast majority of vascular impotence.Most of the venous leakage is spontaneous, and its incidence increases with age.
The cause of intravenous impotence has not been clarified so far. It is speculated that the following types can be included:
(1) In the penis sponge body, or venous blood vessels with too large diameter or too large number of diameter or excessive amounts may be generated.Send impotence).The intravenous valve intimalic is inherently incomplete or acquired; scars in veins; venous elasticity decreases with age.
(2) The degeneration of the white film becomes thinner and weak, leading to insufficient compression force on the conductive vein and subordinate vein, which may be caused by aging, hard constraints.The white film can also have congenital or obtained leakage.For example, an elderly man's penis sponge white membrane in the white membrane changes abnormally, which causes the elastic fiber dysfunction to disorders, which can cause dysfunction of erection and become one of the causes of venous leakage.
(3) Direct damage to the smooth muscle of the sponge body, such as atrophy or fibrosis, can prevent the sufficient expansion of hematopoietic sinus and compression of small veins.The loss of these compliance may be caused by the common damage, atrophy or degenerative changes in patients such as diabetes or arteriosclerosis.Sponge tissue can also increase the increase in collagen fibers and weaken elasticity.
(4) Inadequate or improper release of neurotransmitters, which causes blood sinus to not relax well, and also causes vein to fail.The reason may be the heart or neurosis, or it may be the nicotine with too much smoking, which enhances the adrenaline activity and stimulates & alpha; the receptor and increase the vascular tension.
(5), whether it is a congenital or acquired penis sponge body and the venous traffic branch between the urethral sponge body can cause impotence.The acquired nature may be caused by trauma, or it may be caused by puncture during the treatment of abnormal erection.
(Editor in charge: Chen Bong)
