Artlabeling Activity Male Reproductive System in Anterior View 1 of 3
Overview
What'south the male person reproductive system?
The male person reproductive system includes a group of organs that make up a man's reproductive and urinary organization. These organs practice the post-obit jobs inside your body:
- They produce, maintain and transport sperm (the male person reproductive cells) and semen (the protective fluid effectually sperm).
- They discharge sperm into the female reproductive tract.
- They produce and secrete male person sexual practice hormones.
The male reproductive system is fabricated up of internal (within your body) and external (outside your body) parts. Together, these organs help you urinate (rid your torso of liquid waste matter materials), have sexual intercourse and brand children.
Function
How does the male person reproductive arrangement part?
The entire male reproductive system is dependent on hormones. These are chemicals that stimulate or regulate the activeness of your cells or organs. The primary hormones involved in the operation of the male reproductive system are follicle-stimulating hormone (FSH), luteinizing hormone (LH) and testosterone.
FSH and LH are produced by the pituitary gland. It's located at the base of your brain and it'south responsible for many functions in your body. FSH is necessary for sperm production (spermatogenesis). LH stimulates the production of testosterone, which is necessary to continue the process of spermatogenesis. Testosterone is also of import in the evolution of male characteristics, including musculus mass and strength, fatty distribution, bone mass and sex drive.
Beefcake
What are the external male person reproductive structures?
Nearly of the male reproductive arrangement is located exterior of your abdominal cavity or pelvis. The external parts of the male reproductive system include the penis, the scrotum and the testicles.
Penis
The penis is the male organ for sexual intercourse. It has 3 parts:
- The root: This is the part of the penis that attaches to the wall of your abdomen.
- The torso or shaft: Shaped like a tube or cylinder, the body of the penis is made upwards of three internal chambers. Inside these chambers at that place'due south a special, sponge-like erectile tissue that contains thousands of large spaces that fill with claret when you're sexually aroused. Equally the penis fills with blood, information technology becomes rigid and erect, which allows for penetration during sex activity. The pare of the penis is loose and elastic, allowing for changes in penis size during an erection.
- The glans: This is the cone-shaped end of the penis. The glans, which is likewise chosen the head of the penis, is covered with a loose layer of skin called foreskin. This skin is sometimes removed in a procedure called circumcision.
The opening of the urethra — the tube that transports both semen and urine out of the body — is located at the tip of the glans penis. The penis also contains many sensitive nerve endings.
Semen, which contains sperm, is expelled (ejaculated) through the terminate of the penis when a human reaches sexual climax (orgasm). When the penis is erect, the flow of urine is blocked from the urethra, allowing only semen to be ejaculated at orgasm.
Scrotum
The scrotum is the loose pouch-like sac of skin that hangs behind the penis. It holds the testicles (also called testes), as well as many nerves and blood vessels. The scrotum protects your testes, besides equally providing a sort of climate control system. For normal sperm development, the testes must exist at a temperature slightly libation than the body temperature. Special muscles in the wall of the scrotum allow it to contract (tighten) and relax, moving the testicles closer to the body for warmth and protection or further away from the body to cool the temperature.
Testicles (testes)
The testes are oval organs about the size of very large olives that prevarication in the scrotum, secured at either finish by a structure chosen the spermatic string. Nigh men accept ii testes. The testes are responsible for making testosterone, the primary male sexual activity hormone, and for producing sperm. Within the testes are coiled masses of tubes chosen seminiferous tubules. These tubules are responsible for producing the sperm cells through a process chosen spermatogenesis.
Epididymis
The epididymis is a long, coiled tube that rests on the behind of each testicle. Information technology carries and stores sperm cells that are created in the testes. Information technology's besides the job of the epididymis to bring the sperm to maturity — the sperm that sally from the testes are immature and incapable of fertilization. During sexual arousal, contractions force the sperm into the vas deferens.
What are the internal male reproductive organs?
You take several internal organs — also chosen accessory organs — that play a large part in the male person reproductive organisation. These organs include:
- Vas deferens: The vas deferens is a long, muscular tube that travels from the epididymis into the pelvic crenel, to just behind the bladder. The vas deferens transports mature sperm to the urethra in preparation for ejaculation.
- Ejaculatory ducts: These ducts are formed by the fusion of the vas deferens and the seminal vesicles. The ejaculatory ducts empty into the urethra.
- Urethra: The urethra is the tube that carries urine from the bladder to outside of your body. In males, it has the additional office of expelling (ejaculating) semen when you accomplish orgasm. When the penis is erect during sex, the flow of urine is blocked from the urethra, allowing only semen to exist ejaculated at orgasm.
- Seminal vesicles: The seminal vesicles are sac-like pouches that attach to the vas deferens near the base of operations of the bladder. The seminal vesicles make a carbohydrate-rich fluid (fructose) that provides sperm with a source of energy and helps with the sperms' ability to motility (motility). The fluid of the seminal vesicles makes upward most of the volume of your ejaculatory fluid, or ejaculate.
- Prostate gland: The prostate gland is a walnut-sized structure that'due south located below the urinary float in front of the rectum. The prostate gland contributes boosted fluid to the ejaculate. Prostate fluids likewise assist to nourish the sperm. The urethra, which carries the ejaculate to be expelled during orgasm, runs through the center of the prostate gland.
- Bulbourethral glands: The bulbourethral glands, or Cowper's glands, are pea-sized structures located on the sides of the urethra, just beneath the prostate gland. These glands produce a clear, glace fluid that empties straight into the urethra. This fluid serves to lubricate the urethra and to neutralize any acidity that may be present due to residuum drops of urine in the urethra.
Weather condition and Disorders
Tin can a homo go through menopause?
Menopause is a term used to describe the finish of a woman'due south normal menstrual part. In women, this is marked by changes in hormone product. 1 of the biggest changes for a woman after menopause is that she can no longer have children. The testes, unlike the ovaries, don't lose the ability to make hormones. If a man is salubrious, he may be able to make sperm well into his 80s or longer.
On the other hand, subtle changes in the role of the testes can happen every bit early as 45 to 50 years of historic period, and more dramatically after the age of 70. For many men, hormone production may remain normal into onetime age, while others may have declining hormone product before on. This tin sometimes exist a event of an illness, such as diabetes.
It's unclear whether decreasing testicular function contributes to symptoms like fatigue, weakness, low or impotence.
Care
Can "male menopause" be treated?
If your testosterone levels are low, hormone replacement therapy may assistance salve symptoms, such as the loss of interest in sexual activity, depression and fatigue. All the same, replacing male hormones can make prostate cancer worse, and may make atherosclerosis (hardening of the arteries) worse, also.
You should receive a consummate physical examination and laboratory tests should be performed before starting hormone replacement therapy. In that location are withal many unanswered questions about how many middle-aged men could do good from hormone replacement therapy. Talk to your healthcare provider about all the pros and cons of this treatment and what the all-time choice is for you lot.
Source: https://my.clevelandclinic.org/health/articles/9117-male-reproductive-system
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