Search This Blog

Male Reproductive System




The male reproductive system is illustrated to the right. Sperm are produced in the testes located in the scrotum. Normal body temperature is too hot thus is lethal to sperm so the testes are outside of the abdominal cavity where the temperature is about 2° C (3.6° F) lower. Note also that a woman’s body temperature is lowest around the time of ovulation to help insure sperm live longer to reach the egg. If a man takes too many long, very hot baths, this can reduce his sperm count. Undescended testes (testes are supposed to descend before birth) will cause sterility because their environment is too warm for sperm viability unless the problem can be surgically corrected.
From there, sperm are transferred to the Epididymis coiled tubules also found within the scrotum, that store sperm and are the site of their final maturation (Coiled tubules in the scrotum that store sperm) coiled tubules also found within the scrotum, that store sperm and are the site of their final maturation.
In Ejaculation: expulsion of semen vas deferens (plural = vasa deferentia). From the epididymis, the vas deferens goes up, around the front of, over the top of, and behind the bladder. A vasectomy is a fairly simple, outpatient operation that involves making a small slit in each scrotum, cutting the vasa deferentia near where they begin, and tying off the cut ends to prevent sperm from leaving the scrotum. Because this is a relatively non-invasive procedure (as compared to doing the same to a woman’s oviducts), this is a popular method of permanent birth control once a couple has had all the children they desire. Couples should carefully weigh their options, because this (and the corresponding female procedure) is not designed to be a reversible operation.
The ends of the vasa deferentia, behind and slightly under the bladder, are called the ejaculatory ducts. The seminal vesicles are also located behind the bladder. Their secretions are about 60% of the total volume of the semen (= sperm and associated fluid) and contain mucus, amino acids, fructose as the main energy source for the sperm, and prostaglandins to stimulate female uterine contractions to move the semen up into the uterus. The seminal vesicles empty into the ejaculatory ducts. The ejaculatory ducts then empty into the urethra (which, in males, also empties the urinary bladder).
The initial segment of the urethra is surrounded by the Prostate Gland: the largest of the accessory glands which puts its secretions directly into the urethra prostate gland(note spelling!). The prostate is the largest of the accessory glands and puts its secretions directly into the urethra. These secretions are alkaline to buffer any residual urine, which tends to be acidic, and the acidity of the woman’s vagina. The prostate needs a lot of zinc to function properly, and insufficient dietary zinc (as well as other causes) can lead to enlargement which potentially can constrict the urethra to the point of interferring with urination. Mild cases of prostate hypertrophy can often be treated by adding supplemental zinc to the man’s diet, but severe cases require surgical removal of portions of the prostate. This surgery, if not done very carefully can lead to problems with urination or sexual performance.
The bulbourethral glands or Cowper’s glands are the third of the accessory structures. These are a small pair of glands along the urethra below the prostate. Their fluid is secreted just before emission of the semen, thus it is thought that this fluid may serve as a lubricant for inserting the penis into the vagina, but because the volume of these secretions is very small, people are not totally sure of this function.
The urethra goes through the penis. In humans, the penis contains three cylinders of spongy, erectile tissue. During arousal, these become filled with blood from the arteries that supply them and the pressure seals off the veins that drain these areas causing an erection, which is necessary for insertion of the penis into the woman’s vagina. In a number of other animals, the penis also has a bone, the baculum, which helps to stiffen it. The head of the penis, the glans penis, is very sensitive to stimulation. In humans, as in other mammals, the glans is covered by the foreskin or prepuce, which may have been removed bycircumcision. Medically, circumcision is not a necessity, but rather a cultural “tradition”. Males who have not been circumcised need to keep the area between the glans and the prepuce clean so bacteria and/or yeasts don’t start to grow on accumulated secretions, etc. there. There is some evidence that uncircumcised males who do not keep the glans/prepuce area clean are slightly more prone to penile cancer.


7 comments:

  1. Thanks for sharing this information. I really like your blog post very much. You have really shared a informative and interesting blog post with people.. pill kings

    ReplyDelete
  2. I really appreciate the kind of topics you post here. Thanks for sharing us a great information that is actually helpful. Good day! https://www.xetnghiemadnchacon.com/dich-vu/

    ReplyDelete
  3. With so many books and articles coming up to give gateway to make-money-online field and confusing reader even more on the actual way of earning money, мъжки пенис

    ReplyDelete
  4. Great survey. I'm sure you're getting a great response. 조루수술

    ReplyDelete
  5. This information is meaningful and magnificent which you have shared here about the fertility supplements for women. I am impressed by the details that you have shared in this post and It reveals how nicely you understand this subject. I would like to thanks for sharing this article here. fertility supplements for women uk

    ReplyDelete
  6. Wisdom Overseasis authorized India's Exclusive Partner of Southwestern University PHINMA, the Philippines established its strong trust in the minds of all the Indian medical aspirants and their parents. Under the excellent leadership of the founder Director Mr. Thummala Ravikanth, Wisdom meritoriously won the hearts of thousands of future doctors and was praised as the “Top Medical Career Growth Specialists" among Overseas Medical Education Consultants in India.

    Southwestern University PHINMAglobally recognized university in Cebu City, the Philippines facilitating educational service from 1946. With the sole aim of serving the world by providing an accessible, affordable, and high-quality education to all the local and foreign students. SWU PHINMA is undergoing continuous changes and shaping itself as the best leader with major improvements in academics, technology, and infrastructure also in improving the quality of student life.

    ReplyDelete
  7. MBBS in Abroad for Indian students as it presents a cost-effective fee structure than medical colleges and universities in India. The fee structure for medical learning in a foreign country falls very low for the 5 to 6 years of the course, depending on the institute, but that’s just the crux of it, so let’s learn more about what’s essential about MBBS Abroad for Indian Medical Students.

    ReplyDelete