
Ejaculation is a two-stage process that involves the release of sperm cells and seminal plasma from the male reproductive system. During the emission phase, muscles around the epididymis and ductus deferens contract to push sperm into the prostate and urethra. The second stage, or expulsion phase, involves the rhythmic contraction of various pelvic muscles, including the bulbospongiosus and bulbocavernosus muscles, to expel semen from the penis. These involuntary muscle contractions, which can occur with or without genital stimulation, are part of the male orgasm and are essential for natural conception. While ejaculation is typically an uncontrollable reflex, certain exercises like Kegels can help men strengthen their pelvic floor muscles and gain greater ejaculatory control.
| Characteristics | Values |
|---|---|
| Muscle that pushes semen out | Bulbospongiosus (or bulbocavernosus) |
| Location | Surrounds the urethral bulb and the rear of the corpus spongiosum |
| Function | Acts as a pump that forcefully propels sperm out of the body from the prostatic urethra to the urethral meatus during the expulsion phase of ejaculation |
| Rhythm | Rhythmic intense contractions of the bulbospongiosus muscle are concomitant with orgasmic feeling accompanying ejaculation |
| Control | The expulsion phase is considered an extension of the emission phase, triggered by reaching a certain level of spinal nerve activation |
| Exercises | Kegel exercises help strengthen the pelvic floor muscles, which can provide greater ejaculation control |
Explore related products
What You'll Learn

Ejaculation occurs in two phases
Ejaculation is the discharge of semen (cum) from the penis through the urethra. It is the final stage and natural objective of male sexual stimulation and an essential component of natural conception. Ejaculation occurs in two phases.
The first phase, also known as the emission stage, involves the movement of sperm from the testes and the epididymis (where the sperm are stored) to the beginning of the urethra. The urethra is a hollow tube that runs through the penis and is responsible for transporting either sperm or urine. This phase is characterised by muscular contractions that push the sperm towards the urethra.
The second phase, or ejaculation proper, involves the expulsion of semen through the urethra and out of the body. This phase is marked by strong spasmodic contractions of the bulbocavernosus muscle, which surrounds the corpus spongiosum, the structure in the penis that encloses the urethra. These contractions are involuntary and occur during the male orgasm, resulting in the release of semen.
During ejaculation, the process is initiated by nerve impulses received from the penis. Once started, ejaculation becomes a reflex reaction that cannot be voluntarily interrupted. The seminal fluid is passed from the various accessory glands in a specific sequence. First, a small amount of mucus-like secretion is released from the bulbourethral and urethral glands to flush out the urethra and prepare it for the sperm. This is followed by fluid from the prostate gland and then the seminal vesicles. Finally, the fluid containing the sperm is ejaculated. After the majority of sperm cells have passed, additional fluids are released to flush out the urethra once more.
The volume of ejaculate in humans typically ranges from 2 to 5 millilitres, with only 1 to 5 percent consisting of sperm cells. The remaining constituents of semen include nutrients, water, salts, waste products of metabolism, and cellular debris. The secretions of the testes and accessory glands are influenced by the male hormone testosterone, which is essential for the proper functioning of these glands.
Muscle Recovery: Did I Overwork My Body?
You may want to see also
Explore related products
$12.76

Muscular contractions push semen out
Ejaculation is the discharge of semen (usually containing sperm) from the penis through the urethra. It is the final stage and natural objective of male sexual stimulation. Ejaculation occurs in two phases. In the first phase, or emission stage, sperm are moved from the testes and the epididymis (where the sperm are stored) to the beginning of the urethra. In the second stage, ejaculation proper, the semen is moved through the urethra and expelled from the body.
The process of ejaculation is accomplished by nerve impulses received from the penis. Once ejaculation is started, it becomes a reflex reaction that cannot be voluntarily interrupted. The whole process of ejaculation involves muscular contractions. During the emission phase, the muscles around the epididymis and ductus deferens (the tube extending from the epididymis) contract to push the sperm into the prostate and urethra.
During ejaculation, the semen is expelled by strong spasmodic contractions of the bulbocavernosus muscle, which encircles the corpus spongiosum (the structure in the penis that encloses the urethra). The expulsion phase of ejaculation involves the discharge of semen from the urethral opening. This ejection is driven by coordinated contractions of the pelvic muscles, including the bulbospongiosus and pubococcygeus muscles.
Rhythmic contractions are part of the male orgasm under the control of a spinal reflex at the level of the spinal nerves S2–4 via the pudendal nerve. The onset of the perception of orgasm precedes ejaculation by a few seconds. Orgasm may also be elicited cerebrally without afferent input from the penis. For example, orgasm has been reported during psychomotor seizures in patients with temporal lobe lesions.
Kegel exercises can help strengthen the pelvic floor muscles, which are used to control ejaculation. To perform Kegel exercises, one must find the right muscles to work out, which are commonly known as the pelvic floor muscles. To engage these muscles, imagine that you're trying to close the openings to stop yourself from urinating or passing gas.
Muscle Atrophy: Understanding the Weakening Experience
You may want to see also
Explore related products

Pelvic floor muscles and orgasm
Ejaculation in males occurs in two phases. In the first phase, the emission phase, muscles around the epididymis and ductus deferens contract to push sperm into the prostate and urethra. In the second phase, the expulsion phase, semen is expelled from the body through the urethra by strong contractions of the pelvic floor muscles, including the bulbospongiosus and pubococcygeus muscles. The expulsion phase is an extension of the emission phase, triggered by a certain level of spinal nerve activation.
In females, the pelvic floor muscles are responsible for pleasurable muscle contractions felt in the genitals during orgasm. Orgasms feel bigger and stronger when the pelvic floor muscles are strong. These muscles also play a role in comfortable vaginal penetration, keeping urine inside the bladder, and controlling the passing of stool.
Weak ejaculation in males can be caused by various factors, including age, nerve damage, certain medications, and psychological factors. Conditions such as multiple sclerosis, diabetes, and prostate surgery can also lead to weak ejaculation or anejaculation (orgasm with little or no semen). Kegel exercises can help strengthen the pelvic floor muscles and improve ejaculation strength and volume.
For females, Kegel exercises are recommended to strengthen the pelvic floor muscles and enhance sexual function. Additionally, sexually induced orgasms, along with Kegel exercises, have been found to significantly improve postpartum pelvic floor muscle strength and sexual function in primiparous women who have undergone uncomplicated vaginal deliveries.
In summary, the pelvic floor muscles play a crucial role in orgasm and sexual function for both males and females. Weakness in these muscles can lead to issues such as weak ejaculation in males and reduced orgasm intensity in females. Kegel exercises and sexually induced orgasms are effective ways to strengthen the pelvic floor muscles and enhance sexual pleasure.
Muscle Fibers Growth: Unlocking the Power of Strength
You may want to see also
Explore related products

Perineum pressing can prevent ejaculation
The perineum, also known as the external male G-spot, is a small "hump" located midway between the anus and the testicles. Firmly pressing on this spot during orgasm can induce retrograde ejaculation, preventing semen from escaping through the penis and redirecting it into the bladder. While this technique can be used to prevent premature ejaculation and prolong orgasm, it is important to note that it may carry risks.
Retrograde ejaculation occurs when semen, which would normally be ejaculated through the urethra, is redirected into the urinary bladder. This can happen due to a malfunctioning bladder sphincter, with potential causes including autonomic nervous system dysfunction, prostate surgery, and certain medications. While retrograde ejaculation is sometimes deliberately induced as a form of male birth control or for perceived health benefits, it is not considered a reliable method of contraception and may carry risks.
Pressing the perineum to induce retrograde ejaculation can be done by applying pressure with two fingers, the index and middle fingers, during orgasm. It is important to continue pressing until all muscles in the body relax, as leakage may otherwise occur. This technique requires practice and an understanding of male anatomy.
While some sources claim that retrograde ejaculation can provide health benefits, such as improved inflammation, stress reduction, and enhanced brain function, there is limited scientific evidence to support these claims. Additionally, there may be potential risks associated with the practice, including increased anti-sperm antibodies, changes in bladder pH, and perineum damage due to pressure. Therefore, it is important to approach this technique with caution and consult a healthcare professional before attempting it.
In summary, perineum pressing can be a technique to prevent ejaculation by inducing retrograde ejaculation. However, it is important to understand the potential risks and limitations of this practice and to consult a healthcare professional before attempting it.
Cardiac Muscle and Tetany: What's the Relationship?
You may want to see also
Explore related products

Weak ejaculation and treatment
Ejaculation is the discharge of semen (the ejaculate; normally containing sperm) from the penis through the urethra. It is the final stage and natural objective of male sexual stimulation, and an essential component of natural conception. During ejaculation, the semen is expelled by strong spasmodic contractions of the bulbocavernosus muscle, which encircles the corpus spongiosum (the structure in the penis that encloses the urethra).
Weak ejaculation occurs when semen does not come out with pressure. It is largely subjective, meaning it is often noticed by the person. It is not usually a cause for concern, but it may impact one's enjoyment and desire for sexual activity. Weak ejaculations are most commonly related to getting older. Just as age may weaken your eyesight, it can also reduce both the strength and volume of your ejaculation. Age also has a significant impact on testosterone levels, which play a key role in sex drive, sperm production, and sperm quality. Other causes of weak ejaculation include low testosterone levels, retrograde ejaculation, psychological stressors, and lifestyle factors like smoking, obesity, and drinking alcohol.
Weak ejaculation may also result in a person experiencing less intense orgasms. This experience is more likely to be the case as an individual becomes older. According to the International Society for Sexual Medicine, the average semen volume per ejaculate ranges from 1.25 to 5 milliliters (ml). This amount is the equivalent of one-quarter to 1 teaspoon of semen. It is important to note that semen volumes can vary from one time to another.
Treatments for weak ejaculation depend on the underlying cause. Doctors may prescribe different drugs to enhance sexual function. Some examples include pseudoephedrine (Sudafed). Doctors may also recommend Kegel exercises or some other form of pelvic muscle exercise. These exercises help to strengthen the muscles that control ejaculation. They may be particularly beneficial for anyone whose ejaculation issues are the result of natural aging.
Targeted Training: Muscle Calculator Secrets
You may want to see also
Frequently asked questions
The bulbospongiosus muscle, also known as the bulbocavernosus, surrounds the urethral bulb and the rear of the corpus spongiosum. It contracts rhythmically to push semen out of the body.
Ejaculation is the release of sperm cells and seminal plasma from the male reproductive system. It occurs in two phases. In the first phase, sperm is moved from the testes to the beginning of the urethra. In the second phase, semen is expelled from the body through the urethra.
Orgasm triggers a series of strong, involuntary contractions that coordinate the release of sperm from the testes and the creation of semen. These contractions are part of the male orgasm and are controlled by spinal reflexes.
Kegel exercises can help strengthen the pelvic floor muscles, which are essential for ejaculation control. These exercises can be done anywhere and at any time. It is recommended to consult a healthcare provider to learn how to perform Kegel exercises correctly.











































