How does an erection occur in men or morning rise and sunset
The blood vessels in the penis relax and open, allowing blood to fill the vessels. Blood entering the body under high pressure causes an erection. Ejaculation is a reflex action controlled by the central nervous system.
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Erections in men do not occur immediately. Often this point is closely related to pathology, anatomy, as well as physical factors. This also affects the psyche. Doctors say that the penis rises in the head. When you look at sexuality and the object of desire, a chemical reaction occurs.
Anatomy and structure of the penis
A more detailed study of structure and function requires a bit of medical education, but fortunately education is available. We can count on the final conclusion to make everything clear. This is also interesting because sex is not just about the head.
The penis consists of
- Two chambers called corpora cavernosa, which run the length of the organ and contain a labyrinth of blood vessels in the form of cavernous spaces (like a sponge);
- The urethra, or channel for urine and sperm, which runs along the lower part of the cavernous bodies;
- Erectile tissue that surrounds the urethra, two major arteries, and several veins and nerves;
This is the structure of the male reproductive system. Of course, there are the testicles, the scrotum and all the pleasures of the outside world. However, if you know how the penis works, you can evaluate its capabilities and know in advance about the disadvantages of physiological erection.
How does an erection occur?
When the blood vessels of the corpus cavernosum relax and open, blood flows through the cavernous arteries and fills the void. An erection begins with sensory and mental stimulation. During sexual arousal, nerve signals begin to stimulate the penis. Impulses from the brain and local nerves cause the muscles of the corpus cavernosum to relax, allowing blood to flow and fill the open space.
If a man”s blood is “bad”, arousal is difficult to achieve. Therefore, the cardiovascular system should be treated, not the genitals.
Blood puts pressure on the corpus cavernosum, which leads to expansion of the penis and an erection. The tunica alba (the membrane surrounding the corpus cavernosum) helps keep blood in the corpus cavernosum and maintain an erection. This changes when the muscles of the penis contract, stopping the flow of blood and opening the outflow channel.
At this moment, squeezing the organ or accidentally bending it sharply (jumping up and down in a fit of passion) can lead to its breakdown. Even if there are no bones.
How does ejaculation occur?
Sexual stimulation and friction provide impulses that are transmitted to the spinal cord. Ejaculation is a reflex action controlled by the central nervous system. It functions when sexual intercourse reaches a critical level of arousal. There are two phases.
In the first phase, the vas deferens (tubes that store and transport sperm from the testicles) contract, the sperm is squeezed out to the base of the penis, and the prostate and seminal vesicles secrete to form sperm. At this stage, ejaculation cannot be stopped. Here, the muscles at the base of the penis contract every 0. 8 seconds, pushing sperm out of the penis up to five times in a row.
It turned out that the end of the act is associated only with the nervous system, which is stimulated by an impulse from the “second floor”. If the head is in order, the man can complete the act.
Physiology and pathophysiology of erection
The molecular and clinical understanding of erectile function continues to evolve at a particularly rapid pace. Advances in the genetic diaphragm have greatly contributed to the development of knowledge about smooth muscle relaxation/contraction. Intensive research has yielded many results. Understanding how nitric oxide follows has helped in the molecular understanding of the problem as well as in the treatment of erectile dysfunction.
As men age or undergo surgery (identical risk of erectile dysfunction), preventative therapy is initiated to maintain erectile dysfunction. All clinical interventions were carried out taking into account the complete anatomical, molecular and dynamic knowledge base of erectile function and dysfunction.
Erectile tissue of the penis, especially the smooth muscles of the walls of the cavernous and arterial vessels, play an important role in the erection process. In a slow state, these smooth muscles are toned and provide only minor arterial flow for nutritional purposes. The partial pressure of oxygen in the blood (PO2) is about 35 mmHg. Art.
If nitric oxide (ventilator gas) is not administered, penile death may occur. The same gas is used to poison young people who laugh for them. In medicine it is used for anesthesia.
Sexual stimulation causes the release of neurotransmitters from the pudendal nerve endings. This leads to relaxation of smooth muscles and the following events
- Dilatation of arterioles and arteries due to increased blood flow in both diastolic and systolic phases.
- Catching incoming blood by expanding sinusoids.
- Compression of the subtunical venular plexuses between the tunica albuginea and peripheral sinusoids, reducing venous outflow.
- Stretching the bodies to the required capacity, which blocks the emissary veins between the inner circular and outer longitudinal layers and further reduces venous outflow to a minimum.
- Increase in PO2 (up to approximately 90 mmHg) and intracavernous pressure (about 100 mmHg).
- A further increase in pressure with contraction of the muscles of the ischial joint (hard erection phase).
Read also: 6 nasty things that happen when a man cums inside a woman
Erotic foreplay, passionate sex, orgasm. All this is associated only with pleasant feelings and few people feel negative about it. There”s a lot on the Internet.
The angle of the vertical position of the penis is determined by its size and attachment to the branches of the pubic process (septum) and the anterior surface of the pubic bone (suspension and substantia ligamentum). In men with large penises (> 18 cm) or weakened suspensory ligaments, the angle usually does not exceed 90 degrees, even with full rigidity.
Imagine what the pressure inside the penis would be if its length was 35 cm. The human brain can not only capture the impulse, but also control secret development. With full activity, it can be assumed that a large rooster will die simply from overexertion.
Three stages of detection have been reported in animal studies. The first shows the onset of smooth muscle contraction against a background of a closed venous system.
In the second stage, a slow decrease in pressure is observed. This indicates slow opening of the ductus venosus due to the resumption of basal levels of arterial blood flow.
In the third phase, the pressure drops rapidly with the ability of venous outflow fully restored.
Therefore, erection involves sinusoidal relaxation, arterial distension, and venous compression. Animal and human studies have demonstrated the importance of relaxing relaxed smooth muscles.
Geodynamics of the physiological “rising” of the penis
Male erection is associated with arterial rivers, with pressure in the corpus spongiosum and head of the corpus cavernosum ranging from one third to one half. (through the head), providing a minimal amount of venous fluid.
During a hard erection, the dolichocoel and globus muscles strongly compress the cavernous and penile veins.
- Innervation of the penis can be both autonomic (sympathetic and parasympathetic) and somatic (sensory and motor).
- From neurons in the spinal cord and peripheral ganglia, sympathetic and parasympathetic nerves fuse to form the cavernous nerves, which penetrate the corpora cavernosa and corpus spongiosum, influencing neurovascular events during erection and deposition.
- The somatic nerves are primarily responsible for sensation and contraction of the bulbocavernosus and sciatic muscles.
Morning erection, what to do? life hack for guys.
The parasympathetic pathway arises from the neurons of the lateral column of cells of the second, third and fourth segments of the sacral spinal cord. Prefunctional fibers transmit the pelvic nerves to the pelvic plexus, where they connect with sympathetic nerves from the superior abdominal plexus.
The cavernous nerve is a branch of the pelvic plexus that innervates the penis. Other branches innervate the rectum, bladder, prostate and sphincter. Sometimes during sex, men may experience nagging pain. And it”s not the prostate or the intestines. Don”t run to the doctor just to blow off some steam.
Spongy nerves are easily damaged during radical removal of the rectum, bladder and prostate. A clear understanding of these neural processes is important for the prevention of reproductive arousal. This means that all the nerve endings are activated and at the same time the orgasm becomes stronger.
In this regard, a man may find himself with a finger inserted into his anus. However, for many, simulating a foreign body blow is enough to get aroused. During a male massage you can achieve the strongest erection.
Psychogenetics of erection and stimulation of genital nerve endings
Psychogenic erections are the result of audiovisual stimulation or imagination. Impulses from the brain regulate the erectile centers of the spine, which facilitate the activation of the erectile process. Reflex erections are triggered by tactile stimulation of the genitals.
- Impulses reach the erectile centers of the spine;
- Some then follow the ascending tract, leading to sensory perception, while others activate the autonomic nuclei to send impulses through the cavernous nerves to the penis, causing an erection.
Nocturnal erections occur primarily during rapid eye movement (REM) sleep. REM increases activity in the lumbar region, amygdala, and anterior lumbar gyrus, but decreases activity in the prefrontal and parietal cortex. The mechanism for initiating REM sleep is located in the pontine reticular formation. During REM sleep, cholinergic neurons in the outer segments of the brain are activated, while adrenergic neurons in the central locus ceruleus and serous neurons in the medial segment are silenced. This differential activation can cause nocturnal erections during REM sleep. At this point, a man can achieve involuntary ejaculation and orgasm. This is more powerful than sex with a woman.
Psychogenic and Neurogenic Factors
Psychogenic and neurogenic factors
Note that during vaginal penetration, men momentarily lose short-term receptor memory. Thus, the following occurs: the genitals are functioning, while the man”s head is filled with thoughts. That”s what the woman thinks, but it turns out to be much simpler. Sexual behavior and penile structure are controlled by the hypothalamus, limbic system, and cerebral cortex. As a result, stimulatory or inhibitory messages can be transmitted to the spinal erection center to stimulate or inhibit erection.
Two possible mechanisms have been proposed to explain erectile dysfunction due to psychogenic dysfunction.
Direct inhibition of the erectile center by the brain, as an exaggeration of normal suprasacral inhibition;
Excessive sympathetic outflow or increased levels of peripheral catecholamine, which can enlarge penile smooth muscle;
- Tone to prevent relaxation is essential for erection.
- Animal studies have shown that sympathetic stimulation or systemic administration of epinephrine causes penile erectile dysfunction. Clinically high serum norepinephrine levels have been reported in men with psychogenic ED. In simple terms, a man’s erection depends on both somatic and psychological disorders. For example, telling your lover that he is an asshole will surely turn him on.
- Sexologists suggest that a man”s sexual response to external stimuli depends on the balance between stimulating and inhibitory impulses in the central nervous system. They test questionnaires for sexual inhibition and arousal. This helps determine whether psychotherapy or pharmacological treatment is more successful for men.
In this regard, some sexologists note that an erection may be a symptom of a disease, the absence of which is a pathology. Women are advised to familiarize themselves with such phenomena. Men find it difficult to combine mental relaxation with physiology. If your head is full of problems, then the above facts should create the illusion of freedom. Then sex becomes longer and more comfortable for both parties.
Read more about the “behavioral” characteristics of the male genital organs in our article.
Spontaneous nocturnal erections
Occurs, erection, men, morning, rise
