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The human ejaculatory duct: Structural and functional features
The human ejaculatory duct is a structure of the male reproductive system. This is an important part of sperm motility. At the same time, the main support for ejaculation activities. The end result is maintenance of male fertility. So, for the ejaculatory tube, what information should we know? Let's find the answer through the following article!
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- 1. What is the human ejaculatory duct?
- 2. Anatomical structure of the human ejaculatory duct
- 3. Function of the ejaculatory duct
- 4. The Relationship Between Ejaculation And Orgasm
- 5. Obstruction of the ejaculatory duct
- 6. Benign prostatic hyperplasia
1. What is the human ejaculatory duct?
The human ejaculatory duct is the name given to one of the two hollow tubes. Each duct is formed by the fusion of the vas deferens and the excretory ducts of the seminal vesicles. The ducts open into the urethra about halfway through the prostate. They have the function of mixing sperm stored in the vas deferens with the fluid secreted by the seminal vesicles. It also transports these substances to the prostate gland.
Human ejaculatory ducts
To put it more simply, each human ejaculatory duct is located on each side of the prostate gland. Therefore, this structure is only present in men and not in women. Each ejaculatory tube is about 2 cm long. It is created when the duct of the seminal vesicle fuses with the vas deferens.
2. Anatomical structure of the human ejaculatory duct
The ejaculatory ducts have a number of two tubes, two of which are located on either side of the midline. Each duct is formed by the union of the ducts from the seminal vesicles with the vas deferens. The total length of each tube is about 2 cm.
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They begin at the base of the prostate gland and run anteriorly and downward between the medial and lateral lobes of the gland. At the same time, the ejaculatory ducts run along the sides of the prostate. They end in separate slit-like holes near or just in the margin of the prostate.
The ejaculatory tube is about 2 cm . long
The ducts decrease in size and also converge towards their ends. The layers of the ejaculatory duct are very thin. They are: An outer fibrous layer, which is almost completely lost after the entrance of the ducts into the prostate gland. A muscle fiber layer consists of a thin outer layer and an inner longitudinal layer. Finally a layer of mucous membrane.
3. Function of the ejaculatory duct
Ejaculation occurs in two phases, the initiation phase and the expulsion phase. The initiation phase involves the activity of several structures of the ejaculatory duct. Contraction of the prostate gland, seminal vesicles, and vas deferens pushes fluid into the prostatic urethra.
The ejaculatory duct plays an important role in male ejaculation
Next, semen is stored here until ejaculation. The muscles at the base of the penis contract to push the semen stored in the prostatic urethra through the penile urethra. The semen is then expelled through the urethra. Ejaculation is expelled in waves, due to the movement of the muscles that push it.
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These muscle contractions are associated with orgasms for men. Sperm are made in the testicles and enter the ejaculatory duct through the vas deferens. As it passes through the seminal vesicles, a fructose-rich liquid combines with the sperm.
The amount of semen produced and ejaculated during ejaculation corresponds to the amount of time a man is sexually aroused before ejaculating. In general, the longer the duration of stimulation, the greater the volume of semen that passes through the ejaculatory duct.
4. The Relationship Between Ejaculation And Orgasm
In general, the main function of the ejaculatory duct is to ejaculate semen . Thanks to this liberating action, men can maintain their reproductive function. Ejaculation usually occurs as soon as a man orgasms. Ejaculation and orgasm can happen at the same time, but they don't go hand in hand. One can happen without the presence of the other.
Retrograde ejaculation
For example, a man may have a dry orgasm (called retrograde ejaculation). At this point, he has no ejaculation, but he still has an orgasm. In addition, there are people with Paraplegia – paralysis of the lower extremities of the body due to spinal cord injury below the T1 level. These men ejaculate but no orgasm.
5. Obstruction of the ejaculatory duct
Ejaculatory duct obstruction is a congenital or acquired condition in which one or both ejaculatory ducts are blocked. In case both ejaculatory ducts are blocked. This disease presents with symptoms of aspermia (absence of sperm) and male infertility .
Obstruction of the ejaculatory duct in humans
In addition, people with blocked vas deferens may also experience azoospermia. This is a condition in which the sperm count in the semen is low, which does not guarantee the function of maintaining the breed. In general, most cases of blocked ejaculatory ducts are very likely to lead to infertility and infertility.
6. Benign prostatic hyperplasia
Benign prostatic hyperplasia is an abnormal increase in the size of the prostate gland. This is another condition that can affect the ejaculatory duct. Although this condition can be corrected with surgery. However, the ejaculatory duct can be damaged during this process, causing retrograde ejaculation .
Benign prostatic hyperplasia
With the information that the article has provided, hopefully readers will have a better understanding of the human ejaculatory duct. This is an important structure in male reproductive function. Any disease affecting this part is very likely to cause infertility and infertility.
Dr. Nguyen Lam Giang
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