Prostate
The prostate is a glade that surrounds the urethra of a
ban, below the urinary bladder. It is technically known as
a tubuloalveolar exocrine gland, and its primary function
is to store and then secrete a fluid, clear in color and alkaline
in nature, that makes up between ten and thirty percent of
the seminal fluid, which in turn combines with sperm to make
semen
The portion of the seminal fluid not originating from the
prostate is produced by two vesicles known as the seminal
vesicles.
The prostate contains a proportion of smooth muscle fiber
that assists in propelling the semen in the event of ejaculation.
It is about the size of a walnut and can be felt during the
course of a rectal examination by a medical professional.
Although prostate secretions vary somewhat between species,
they are usually primarily composed of simple sugars in a
basic structure. In the prostate secretions of human males,
the protein content of the prostate secretion is less than
one percent, and contains a prostate specific antigen, as
well as acid phosphatase and proteolytic enzymes, and traces
of citric acid and zinc.
The prostate gland requires the presence of male sex hormones,
known as androgens, in order to function correctly. Androgens
are additionally responsible for the development of secondary
male sex characteristics. The primary male sex hormone is
of course testosterone, which is mainly produced in the testicles,
and it is a kind of testosterone (dihydrotestosterone) which
controls and regulates the functions of the prostate. Small
amounts of other male sex hormones are also produced by the
adrenal glands.
Technically speaking, the prostate is an evolved portion
of the proximal male urethra, and has developed as early as
the ninth week of embryonic growth. The urethra, Wolffian
ducts and mesenchyme come together to form the adult prostate
gland, which is really a combination of components contained
in a convenient capsule. The prostate gland is similar in
type to the Skene’s glands found in a lot of females.
Inside the prostate, the prostatic urethra comes from the
bladder and combines with two ejaculatory ducts.
Inflammation of the prostate gland is known as prostatitis,
and comes in several different varieties. Chronic nonbacterial
prostitis, also known as male chronic pelvic pain syndrome,
is by far the most common form of prostatitis, accounting
for around 95% of all cases.
Chronic nonbacterial prostatitis can be treated with a variety
of drugs, including alpha blockers, as well as antihistamines
and anxiolytics. Physical therapy and psychotherapy may also
be effective on their own or in combination with other treatments.
Acute prostatitis and chronic bacterial prostatitis are much
less common forms of prostate disease and need to be treated
using antibiotics.
BPH, or benign prostatic hyperplasia, is a disease of elderly
men. It occurs when the prostate enlarges to the extent that
urination can become very difficult. If the prostate is left
unchecked, it may grow large enough to block the urethra and
completely prevent the flow of urine, which is an excruciating
condition requiring immediate surgery to remove a part of
the prostate.
This kind of surgery is called a ‘transurethra re-section’
of the prostate, or TURP, and involves an instrument being
inserted through the urethra to perform the removal. Some
cases of benign prostatic hyperplasia may be caused by a build
up of calcified material in the ducts of the prostate. Frequent
urination may be a symptom of BPH, but may also simply be
a result of bladder spasms, which are common in the elderly.
One of the most publicized and feared afflictions of the
prostate is prostate cancer, which is a relatively common
cancer amongst elderly men in developed nations, and is a
significant cause of death. Elderly men are recommended to
have regular prostate checks by their medical practitioner
in order to catch prostate cancer early while it can still
be treated.
Preventative methods for prostate cancer include regular
sex or, failing that, masturbation, which reduces the risk
of carcinogenic compounds building up in sperm supplies. ‘Regular’
in this instance meaning five or more times a week.
Treatment for prostate cancer usually involves surgery and/or
radiotherapy, both of which can severely inhibit a man’s ability
to have an erection afterwards.
The prostate gland is sometimes called the ‘male G-spot’,
as stimulation of the prostate gland is pleasurable, and some
men are able to achieve orgasm though this alone. Men’s accounts
of this sensation are striking similar to women’s accounts
of stimulation of their own ‘G-spot’.
Some studies have indicated a link between having a vasectomy
and developing prostate cancer, but the evidence is shaky
at best. It is currently thought that even if having a vasectomy
does increase a man’s risk of developing the disease, the
increased likelihood os very small indeed.
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