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Testicular Rupture
Testicular rupture is a rip or tear in the tunica albuginea resulting in extrusion of the testicular contents, including the seminiferous tubules. It is a rare complication of testicular trauma and can result from blunt or penetrating trauma, although blunt trauma is more likely to cause rupture. Testicular rupture, typically resulting from trauma sustained during a motor vehicle crash or sports play, mainly affects those from the ages of 10–30. The main symptoms of testicular rupture are scrotal swelling and severe pain, which can make diagnosis difficult. Testicular rupture should be suspected whenever blunt trauma to the scrotum has been sustained. Treatment consists of surgical exploration with repair of the injury. __TOC__ Treatment A potential testicular rupture is evaluated with ultrasound imaging. Testicular rupture is treated with surgery, but the procedure performed depends on the magnitude of the injury and the salvageability of the tissue. An orchiectomy, which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tunica Albuginea Of Testis
The tunica albuginea is a dense, blue-white layer of fibrous tissue surrounding the testis. It is the middle of three envelopes forming the capsule of the testis; it is deep to the visceral layer of tunica vaginalis, and superficial to the tunica vasculosa testis (vascular layer of testis). The connective tissue of the tunica albuginea testis extends into the substance of the testis to form fibrous partitions - the septa testis. At the posterior aspect of the testis (where the serosa of testis is deficient to allow for the attachment of the epididymis), the tunica albuginea extends into the testis to form the mediastinum testis. Anatomy It is thicker than the tunica albuginea of the ovary. Histology It is composed of bundles of white fibrous connective tissue (from which it derives its name '' albuginea'') which interlace in every direction. Additional images File:Gray1145.png, Transverse section through the left side of the scrotum and the left testis. File:Gray111 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Testicle
A testicle or testis ( testes) is the gonad in all male bilaterians, including humans, and is Homology (biology), homologous to the ovary in females. Its primary functions are the production of sperm and the secretion of Androgen, androgens, primarily testosterone. The release of testosterone is regulated by luteinizing hormone (LH) from the anterior pituitary gland. Sperm production is controlled by follicle-stimulating hormone (FSH) from the anterior pituitary gland and by testosterone produced within the gonads. Structure Appearance Males have two testicles of similar size contained within the scrotum, which is an extension of the abdominal wall. Scrotal asymmetry, in which one testicle extends farther down into the scrotum than the other, is common. This is because of the differences in the vasculature's anatomy. For 85% of men, the right testis hangs lower than the left one. Measurement and volume The volume of the testicle can be estimated by palpating it and compari ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seminiferous Tubule
Seminiferous tubules are located within the testicles, and are the specific location of meiosis, and the subsequent creation of male gametes, namely spermatozoa. Structure The epithelium of the tubule consists of a type of sustentacular cells known as Sertoli cells, which are tall, columnar type cells that line the tubule. In between the Sertoli cells are spermatogenic cells, which differentiate through meiosis to sperm cells. Sertoli cells function to nourish the developing sperm cells. They secrete androgen-binding protein, a binding protein which increases the concentration of testosterone. There are two types: convoluted and straight, convoluted toward the lateral side, and straight as the tubule comes medially to form ducts that will exit the testis. The seminiferous tubules are formed from the testis cords that develop from the primitive gonadal cords, formed from the gonadal ridge. Function Spermatogenesis, the process for producing spermatozoa, takes place in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Testicular Trauma
Testicular trauma is an injury to one or both testicles. Types of injuries include blunt, penetrating, and degloving. Because the testes are located within the scrotum, which hangs outside of the body, they do not have the protection of muscles and bones. This makes it easier for the testes to be struck, hit, kicked, or crushed, which occurs most often during contact sports. Testicles can be protected by wearing athletic cups during sports. Trauma to the testes can cause severe pain, bruising, swelling, and/or in severe cases even infertility. In most cases, the testes—which are made of a spongy material—can absorb some impact without serious damage. A rare type of testicular trauma, called testicular rupture, occurs when a testicle receives a direct blow or is squeezed against the hard bones of the pelvis. This injury can cause blood to leak into the scrotum and possibly even infertility and other complications. In severe cases, surgery to repair the rupture—and thus save ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scrotum
In most terrestrial mammals, the scrotum (: scrotums or scrota; possibly from Latin ''scortum'', meaning "hide" or "skin") or scrotal sac is a part of the external male genitalia located at the base of the penis. It consists of a sac of skin containing the external spermatic fascia, testicles, epididymides, and vasa deferentia. The scrotum will usually tighten when exposed to cold temperatures. The scrotum is homologous to the labia majora in females. Structure In regards to humans, the scrotum is a suspended two-chambered sac of skin and muscular tissue containing the testicles and the lower part of the spermatic cords. It is located behind the penis and above the perineum. The perineal raphe is a small, vertical ridge of skin that expands from the anus and runs through the middle of the scrotum front to back. The scrotum is also a distention of the perineum and carries some abdominal tissues into its cavity including the testicular artery, testicular vein, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Exploratory Surgery
Exploratory surgery is surgery whose purpose is to look inside the body to help diagnose an ailment. Because surgery is an invasive and often risky intervention, it is typically only used when other methods such as external observation and testing body fluids have failed. Modern imaging techniques, starting with the invention of CT scans in 1972, have made it possible to look inside the body without surgery; these less-invasive techniques have significantly replaced exploratory surgery in humans. Exploratory surgery is still used for non-human animals, where tools for imaging are more expensive than exploratory surgery and often less available. Exploratory surgery in humans As late as the early 1970s, when a patient presented to a hospital and reported severe pain for which there was no cause readily detectable from external observation or tests of body fluids, exploratory surgery was often the only way to make a definitive diagnosis while the patient was alive. This was highl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultrasound
Ultrasound is sound with frequency, frequencies greater than 20 Hertz, kilohertz. This frequency is the approximate upper audible hearing range, limit of human hearing in healthy young adults. The physical principles of acoustic waves apply to any frequency range, including ultrasound. Ultrasonic devices operate with frequencies from 20 kHz up to several gigahertz. Ultrasound is used in many different fields. Ultrasonic devices are used to detect objects and measure distances. Ultrasound imaging or sonography is often used in medicine. In the nondestructive testing of products and structures, ultrasound is used to detect invisible flaws. Industrially, ultrasound is used for cleaning, mixing, and accelerating chemical processes. Animals such as bats and porpoises use ultrasound for locating prey and obstacles. History Acoustics, the science of sound, starts as far back as Pythagoras in the 6th century BC, who wrote on the mathematical properties of String instrument ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orchiectomy
Orchiectomy (also named orchidectomy) is a surgery, surgical procedure in which one or both testicles are removed. The surgery can be performed for various reasons: *treatment for testicular cancer *as part of gender-affirming surgery for transgender women *as management for advanced prostate cancer *to remove damaged testes after testicular torsion. *after a trauma or complex rupture of the tunica albuginea. *as a treatment for post vasectomy pain syndrome. Less frequently, orchiectomy may be performed following a trauma, or due to wasting away of one or more testicles. Procedure Simple orchiectomy A simple orchiectomy is commonly performed as part of gender-affirming surgery for transgender women, or as palliative treatment for advanced cases of prostate cancer. A simple orchiectomy may also be required in the event of testicular torsion. For the procedure, the person lies flat on an operating table with the Human penis, penis taped against the abdomen. The nurse shaves a sm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semen
Semen, also known as seminal fluid, is a bodily fluid that contains spermatozoon, spermatozoa which is secreted by the male gonads (sexual glands) and other sexual organs of male or hermaphrodite, hermaphroditic animals. In humans and placental mammals, seminal fluid is ejaculation, ejaculated through the penis and contains Proteolytic enzyme, proteolytic and other enzymes as well as fructose, which promote the survival of spermatozoa and provide a medium through which they can move or "swim" from the vagina into the uterus to fertilization, fertilize the female ovum and form a zygote. semen collection, Semen is collected from animals for artificial insemination or cryoconservation of genetic material. Cryoconservation of animal genetic resources is a practice that calls for the collection of semen in efforts for conservation of a particular breed. Physiology Fertilization Depending on the species, spermatozoa can fertilize ova externally or internally. In external fertiliz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypogonadism
Hypogonadism means diminished functional activity of the human gonad, gonads—the testicles or the ovary, ovaries—that may result in diminished biosynthesis, production of sex hormones. Low androgen (e.g., testosterone) levels are referred to as hypoandrogenism and low estrogen (e.g., estradiol) as hypoestrogenism. These are responsible for the observed signs and symptoms in both males and females. Hypogonadism, commonly referred to by the symptom "low testosterone" or "low T", can also decrease other hormones secreted by the gonads including progesterone, dehydroepiandrosterone, DHEA, anti-Müllerian hormone, activin, and inhibin. Spermatogenesis, Sperm development (spermatogenesis) and ovulation, release of the egg from the ovaries (ovulation) may be impaired by hypogonadism, which, depending on the degree of severity, may result in partial or complete infertility. In January 2020, the American College of Physicians issued clinical guidelines for testosterone (medication), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Self-esteem
Self-esteem is confidence in one's own worth, abilities, or morals. Self-esteem encompasses beliefs about oneself (for example, "I am loved", "I am worthy") as well as emotional states, such as triumph, despair, pride, and shame. Smith and Mackie define it by saying "The self-concept is what we think about the self; self-esteem, is the positive or negative evaluations of the self, as in how we feel about it (see self)." The construct of self-esteem has been shown to be a desirable one in psychology, as it is associated with a variety of positive outcomes, such as academic achievement, relationship satisfaction, happiness, and lower rates of criminal behavior. The benefits of high self-esteem are thought to include improved mental and physical health, and less anti-social behavior while drawbacks of low self-esteem have been found to be anxiety, loneliness, and increased vulnerability to substance abuse. Self-esteem can apply to a specific attribute or globally. Psychologists usu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Infertility
In biology, infertility is the inability of a male and female organism to Sexual reproduction, reproduce. It is usually not the natural state of a healthy organism that has reached sexual maturity, so children who have not undergone puberty, which is the body's start of fertility, reproductive capacity, are excluded. It is also a normal state in women after menopause. In humans, ''infertility'' is defined as the inability to become pregnant after at least one year of unprotected and regular sexual intercourse involving a male and female partner. There are many causes of infertility, including some that Assisted reproductive technology, medical intervention can treat. Estimates from 1997 suggest that worldwide about five percent of all heterosexual couples have an unresolved problem with infertility. Many more couples, however, experience involuntary childlessness for at least one year, with estimates ranging from 12% to 28%. Male infertility is responsible for 20–30% of infert ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
