Many people do not know what internal ejaculation is, nor do they know what external ejaculation is. They think that these two types of ejaculation are the same and can both lead to pregnancy. However, this idea is wrong, because internal ejaculation and external ejaculation are definitely different. If you don't master them in time, you may think of the wrong method. Internal and external ejaculation are not both able to lead to pregnancy. External ejaculation cannot lead to pregnancy. So what are the differences between internal ejaculation and external ejaculation? Ejaculation is a reflex action of male animals to eject semen during sexual behavior. For humans, ejaculation is a series of coordinated actions of various parts of the reproductive system, and semen is ejected from the penis. It includes two-step spinal reflexes. The primary center is in the lumbar sacral spinal cord, and its sensory impulse is transmitted by the tactile receptors of the glans penis. The first step is the sympathetic nerve outgoing impulse to cause the contraction of the smooth muscle of the vas deferens and seminal vesicle, thereby transferring the semen in the vas deferens and seminal vesicle to the urethra; the second step is to use the outgoing impulse of the pudendal nerve to contract the transverse muscle at the root of the corpus cavernosum of the penis, thereby ejecting the semen in the urethra. The excitement of the higher parts of the brain also acts on the erection center and ejaculation center of the spinal cord through the descending pathway. Normal human sexual excitement stimuli come from various senses and affect spinal reflex activities through the brain. The so-called external ejaculation is when both parties reach orgasm, the penis ejaculates outside the vagina, which can be done through masturbation or pulling it out of the vagina; internal ejaculation is when the penis ejaculates inside the vagina. The difference between these two ejaculation methods is that they can reduce the chance of pregnancy. The main question now is what is external ejaculation and internal ejaculation. Generally speaking, when semen is directly ejaculated into the vagina without using a condom, it is called internal ejaculation. Extracorporeal ejaculation refers to a method in which the penis is withdrawn during sexual intercourse, when ejaculation is about to occur, so that semen is ejaculated outside the woman's body. It is often used as a contraceptive method, but this method is unreliable and has certain harm to the body. The earliest record of external ejaculation is in the first five books of the Hebrew Bible, the Pentateuch, written more than 2,500 years ago. The ancient Greeks and Romans may have preferred smaller families and therefore tried every possible way to prevent pregnancy. Some archaeologists have reason to believe that people at that time already knew how to use external ejaculation to limit fertility based on some data and artifacts. After the Roman Empire began to decline in the early 5th century AD, there are no records of people using contraceptives until the early 15th century. The combination of reduced contraceptive use and the continued decline of the Roman Empire led to the loss of many contraceptive methods. From the 18th century until the development of modern contraceptive methods, extracorporeal ejaculation was one of the most popular contraceptive methods in Europe, North America and other places. Now everyone should know about extracorporeal ejaculation and internal ejaculation. If you know what extracorporeal ejaculation and internal ejaculation are, then you can choose the most suitable way to ejaculate. Ejaculation is very important for men. Normally, you cannot hold back your ejaculation, and you cannot ejaculate too frequently. These are harmful to men and must be controlled. |
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