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Smegma
Smegma (Ancient Greek σμῆγμα : ''smēgma'') is a combination of shed skin cells, skin oils, and moisture. It occurs in both male and female mammalian genitalia. In females, it collects around the clitoris and in the folds of the labia minora; in males, smegma collects under the foreskin. Females The accumulation of sebum combined with dead skin cells forms smegma. ''Smegma clitoridis'' is defined as the secretion of the apocrine glands of the clitoris, in combination with desquamating epithelial cells. Glands that are located around the clitoris, the labia minora, and the labia majora secrete sebum. If smegma is not removed frequently it can lead to clitoral adhesion which can make clitoral stimulation (such as masturbation) painful (clitorodynia). Males In males, smegma helps keep the glans moist and facilitates sexual intercourse by acting as a lubricant. Smegma, itself, is completely benign, but uncircumcised "men with phimosis have an increased risk of pen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foreskin
In male human anatomy, the foreskin, also known as the prepuce, is the double-layered fold of skin, mucosal and muscular tissue at the distal end of the human penis that covers the glans and the urinary meatus. The foreskin is attached to the glans by an elastic band of tissue, known as the frenulum. The outer skin of the foreskin meets with the inner preputial mucosa at the area of the mucocutaneous junction. The foreskin is mobile, fairly stretchable and sustains the glans in a moist environment. Except for humans, a similar structure, known as penile sheath, appears in the male sexual organs of all primates and the vast majority of mammals. In humans, foreskin length varies widely and coverage of the glans in a flaccid and erect state can also vary. The foreskin is fused to the glans at birth and is generally not retractable in infancy and early childhood. Inability to retract the foreskin in childhood should not be considered a problem unless there are other symp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horse Sheath Cleaning
Sheath cleaning is a hygienic process occasionally needed by male horses, both geldings and stallions, wherein a caretaker, groom or veterinarian checks the horse's sheath, the pocket of skin that protects the penis of the horse when it is not in use for urination (or, in the case of stallions, breeding)."Cut Through Smegma". ''Horse Journal'', August, 2007, p. 19–20. This area may need to be cleaned, starting at a young age after breeding and the birth season, but particularly in geldings. Not only can smegma, a waxy substance that includes dirt and dead skin cells, accumulate, but some geldings (and occasionally, stallions) may also form a "bean", a hardened ball of smegma inside the sheath or even the urethra that, in extreme cases, can interfere with urine flow. Although a gelding retains the same beneficial microorganisms in the sheath as a stallion, they seem to accumulate smegma and other debris at a higher rate, probably because geldings rarely fully extrude the penis, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancient Greek Language
Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic period (), and the Classical period (). Ancient Greek was the language of Homer and of fifth-century Athenian historians, playwrights, and philosophers. It has contributed many words to English vocabulary and has been a standard subject of study in educational institutions of the Western world since the Renaissance. This article primarily contains information about the Epic and Classical periods of the language. From the Hellenistic period (), Ancient Greek was followed by Koine Greek, which is regarded as a separate historical stage, although its earliest form closely resembles Attic Greek and its latest form approaches Medieval Greek. There were several regional dialects of Ancient Greek, of which Attic Greek developed into Koine. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Preputial Gland
Preputial glands are exocrine glands that are located in the folds of skin front of the genitals of some mammals. They occur in several species, including mice, ferrets, rhinoceroses, and even-toed ungulates and produce pheromones. The glands play a role in the urine-marking behavior of canids such as gray wolves and African wild dogs. The preputial glands of female animals are sometimes called clitoral glands. The preputial glands of male musk deer produce strong-smelling deer musk which is of economic importance, as it is used in perfumes. Human homologues There is debate about whether humans have functional homologues to preputial glands. Preputial glands were first noted by Edward Tyson and in 1694 fully described by William Cowper who named them Tyson's glands after Tyson. They are described as modified sebaceous glands located around the corona and inner surface of the prepuce of the human penis. They are believed to be most frequently found in the balanopreputial sulcu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keratin Pearl
A keratin pearl is a keratinized structure found in regions where abnormal squamous cells form concentric layers. Also called an epithelial pearl, due to a location among squamous cells of the epithelium, this type of structure is sometimes seen with squamous cell carcinoma Squamous-cell carcinomas (SCCs), also known as epidermoid carcinomas, comprise a number of different types of cancer that begin in squamous cells. These cells form on the surface of the skin, on the lining of hollow organs in the body, and on the .... References External links Medical dictionary definition Epithelial cells Keratins {{pathology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Contagious Equine Metritis
Contagious equine metritis (CEM) is a type of metritis (uterine inflammation) in horses that is caused by a sexually transmitted infection. It is thus an equine venereal disease of the genital tract of horses, brought on by the ''Taylorella equigenitalis'' bacteria and spread through sexual contact. The disease was first reported in 1977, and has since been reported worldwide. Signs Signs in mares appear ten to fourteen days after breeding to an infected or carrier stallion. A gray to creamy vulvar discharge mats the hair of the buttocks and tail, although in many cases, the discharge is absent and the infection is not apparent. Most mares recover spontaneously, although many become carriers. Infected mares are usually infertile during the acute illness. However, the infertility only lasts a few weeks, after which pregnancy is possible. Stallions do not show signs of infection. The first indication of the carrier state is lack of pregnancy in the mares covered by the stalli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taylorella Equigenitalis
Introduction and overview ''Taylorella equigenitalis'' is a Gram-negative, non-motile, microaerophilic bacterium of the genus ''Taylorella'', and the causative agent of contagious equine metritis (CEM) in horses. Phylogeny of ''T. equigenitalis'' includes being part of the '' Alcaligenaceae'' family. ''Taylorella equigenitalis's'' distribution and habitat are primarily in the urethral fossa, distal urethra, prepuce, free-part of the penis of stallions and the clitoral fossa or sinus of mares. Canada and the USA are ''T. equigenitalis'' free, compared to other countries like those in Europe. Infected stallions are asymptomatic and act as the principal source of infection for mares during mating, and their carrier status may persist for many months or even years. A mare that becomes infected normally has recognizable signs unless asymptomatic, contributing to the spread of disease. A symptomatic mare can be identified by the mucus and pus being expelled from her vagina; CEM ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urethral Diverticulum
A urethral diverticulum is a condition where the urethra or the periurethral glands push into the connective tissue layers (fascia) that surround it. Signs and symptoms Urethral diverticula are often asymptomatic and symptoms that are present tend to be nonspecific. They can co-occur with cancer, in approximately 6-9% of cases, most commonly adenocarcinoma, but also including squamous cell carcinoma and transitional cell carcinoma. Approximately 10% of cases co-occur with kidney stones. There are 2 types of urethral diverticulums. Congenital and acquired. In infancy usually the urethral diverticulum is congenital but in rare instances acquired urethral diverticulum can be seen in infancy specially following traumatic catheterization. Common symptoms of urethral diverticulum include incontinence, urinary frequency and urgency, pain during sex, and pain during urination. Other symptoms include pain localized to the urethra or pelvis and frequent urinary tract infection. When ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urethral Fossa
A stallion is a male horse that has not been gelded (castrated). Stallions follow the conformation and phenotype of their breed, but within that standard, the presence of hormones such as testosterone may give stallions a thicker, "cresty" neck, as well as a somewhat more muscular physique as compared to female horses, known as ''mares'', and castrated males, called ''geldings''. Temperament varies widely based on genetics, and training, but because of their instincts as herd animals, they may be prone to aggressive behavior, particularly toward other stallions, and thus require careful management by knowledgeable handlers. However, with proper training and management, stallions are effective equine athletes at the highest levels of many disciplines, including horse racing, horse shows, and international Olympic competition. "Stallion" is also used to refer to males of other equids, including zebras and donkeys. Herd behavior Contrary to popular myths, many stallions do n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tritrichomonas Foetus
''Tritrichomonas foetus'' is a species of single-celled flagellated parasites that is known to be a pathogen of the bovine reproductive tract as well as the intestinal tract of cats. In cattle, the organism is transmitted to the female vagina and uterus from the foreskin of the bull where the parasite is known to reside. It causes infertility, and, at times, has caused spontaneous abortions in the first trimester. In the last ten years, there have been reports of ''Tritrichomonas foetus'' in the feces of young cats that have diarrhea and live in households with multiple cats. ''Tritrichomonas foetus'' looks similarly to ''Giardia'' and is often misdiagnosed for it when viewed under a microscope. Cause ''Tritrichomonas foetus'' is the genus ''Tritrichomonas'' within the order Tritrichomonadida in the Kingdom Protoctista. The parasite is 5-25 µm in size and is spindle shaped with four flagella, which are whiplike projections, and an undulating or wavy membrane. Three o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cytokines
Cytokines are a broad and loose category of small proteins (~5–25 kDa) important in cell signaling. Cytokines are peptides and cannot cross the lipid bilayer of cells to enter the cytoplasm. Cytokines have been shown to be involved in autocrine, paracrine and endocrine signaling as immunomodulating agents. Cytokines include chemokines, interferons, interleukins, lymphokines, and tumour necrosis factors, but generally not hormones or growth factors (despite some overlap in the terminology). Cytokines are produced by a broad range of cells, including immune cells like macrophages, B lymphocytes, T lymphocytes and mast cells, as well as endothelial cells, fibroblasts, and various stromal cells; a given cytokine may be produced by more than one type of cell. They act through cell surface receptors and are especially important in the immune system; cytokines modulate the balance between humoral and cell-based immune responses, and they regulate the maturati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lysozymes
Lysozyme (EC 3.2.1.17, muramidase, ''N''-acetylmuramide glycanhydrolase; systematic name peptidoglycan ''N''-acetylmuramoylhydrolase) is an antimicrobial enzyme produced by animals that forms part of the innate immune system. It is a glycoside hydrolase that catalyzes the following process: : Hydrolysis of (1→4)-β-linkages between ''N''-acetylmuramic acid and ''N''-acetyl-D-glucosamine residues in a peptidoglycan and between ''N''-acetyl-D-glucosamine residues in chitodextrins Peptidoglycan is the major component of gram-positive bacterial cell wall. This hydrolysis in turn compromises the integrity of bacterial cell walls causing lysis of the bacteria. Lysozyme is abundant in secretions including tears, saliva, human milk, and mucus. It is also present in cytoplasmic granules of the macrophages and the polymorphonuclear neutrophils (PMNs). Large amounts of lysozyme can be found in egg white. C-type lysozymes are closely related to α-lactalbumin in sequence and st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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