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Brachycephaly
Brachycephaly (derived from the Ancient Greek '' βραχύς'', 'short' and '' κεφαλή'', 'head') is the shape of a skull shorter than typical for its species. It is perceived as a desirable trait in some domesticated dog and cat breeds, notably the pug and Persian, and can be normal or abnormal in other animal species. In humans, the cephalic disorder is known as flat head syndrome, and results from premature fusion of the coronal sutures, or from external deformation. The coronal suture is the fibrous joint that unites the frontal bone with the two parietal bones of the skull. The parietal bones form the top and sides of the skull. This feature can be seen in Down syndrome. In anthropology, human populations have been characterized as either dolichocephalic (long-headed), mesaticephalic (moderate-headed), or brachycephalic (short-headed). The usefulness of the cephalic index was questioned by Giuseppe Sergi, who argued that cranial morphology provided a better ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plagiocephaly
Plagiocephaly, also known as flat head syndrome, is a condition characterized by an asymmetrical distortion (flattening of one side) of the skull. A mild and widespread form is characterized by a flat spot on the back or one side of the head caused by remaining in a supine position for prolonged periods. Plagiocephaly is a diagonal asymmetry across the head shape. Often it is a flattening which is to one side at the back of the head and there is often some facial asymmetry. Depending on whether synostosis is involved, plagiocephaly divides into two groups: synostotic, with one or more fused cranial sutures, and non-synostotic (deformational). Surgical treatment of these groups includes the deference method; however, the treatment of deformational plagiocephaly is controversial. Brachycephaly describes a very wide head shape with a flattening across the whole back of the head. Causes Slight plagiocephaly is routinely diagnosed at birth and may be the result of a restrictive int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Craniosynostosis
Craniosynostosis is a condition in which one or more of the fibrous sutures in a young infant's skull prematurely fuses by turning into bone (ossification), thereby changing the growth pattern of the skull. Because the skull cannot expand perpendicular to the fused suture, it compensates by growing more in the direction parallel to the closed sutures. Sometimes the resulting growth pattern provides the necessary space for the growing brain, but results in an abnormal head shape and abnormal facial features. In cases in which the compensation does not effectively provide enough space for the growing brain, craniosynostosis results in increased intracranial pressure leading possibly to visual impairment, sleeping impairment, eating difficulties, or an impairment of mental development combined with a significant reduction in IQ. Craniosynostosis occurs in one in 2000 births. Craniosynostosis is part of a syndrome in 15% to 40% of affected patients, but it usually occurs as an iso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Craniosynostosis
Craniosynostosis is a condition in which one or more of the fibrous sutures in a young infant's skull prematurely fuses by turning into bone (ossification), thereby changing the growth pattern of the skull. Because the skull cannot expand perpendicular to the fused suture, it compensates by growing more in the direction parallel to the closed sutures. Sometimes the resulting growth pattern provides the necessary space for the growing brain, but results in an abnormal head shape and abnormal facial features. In cases in which the compensation does not effectively provide enough space for the growing brain, craniosynostosis results in increased intracranial pressure leading possibly to visual impairment, sleeping impairment, eating difficulties, or an impairment of mental development combined with a significant reduction in IQ. Craniosynostosis occurs in one in 2000 births. Craniosynostosis is part of a syndrome in 15% to 40% of affected patients, but it usually occurs as an iso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plagiocephaly
Plagiocephaly, also known as flat head syndrome, is a condition characterized by an asymmetrical distortion (flattening of one side) of the skull. A mild and widespread form is characterized by a flat spot on the back or one side of the head caused by remaining in a supine position for prolonged periods. Plagiocephaly is a diagonal asymmetry across the head shape. Often it is a flattening which is to one side at the back of the head and there is often some facial asymmetry. Depending on whether synostosis is involved, plagiocephaly divides into two groups: synostotic, with one or more fused cranial sutures, and non-synostotic (deformational). Surgical treatment of these groups includes the deference method; however, the treatment of deformational plagiocephaly is controversial. Brachycephaly describes a very wide head shape with a flattening across the whole back of the head. Causes Slight plagiocephaly is routinely diagnosed at birth and may be the result of a restrictive int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tummy Time
Tummy time is a colloquialism for placing infants in the prone position while awake and supervised, to encourage development of the neck and Thorax, trunk muscles and prevent Plagiocephaly, skull deformations. In 1992, the American Academy of Pediatrics recommended babies sleep on their Human back, backs to prevent Sudden Infant Death Syndrome (SIDS). Although the rate of SIDS decreased by 50% since the Safe to Sleep campaign started in 1994, an unintended consequence was that babies missed out on the twelve or so hours they used to spend in the prone position while asleep, and there was a sharp increase in plagiocephaly (flat head syndrome) in infants. Along with tummy time, rotating the direction infants lie in their cribs as well as avoiding too much time in car seats, carriers, and bouncers are behaviors recommended to alleviate the associated risks of infants sleeping in a supine position. Impact on development Infants put to sleep in the supine position have been found to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brachycephalic Airway Obstructive Syndrome
Brachycephalic airway obstructive syndrome (BAOS) is a pathological condition affecting short nosed dogs and cats which can lead to severe respiratory distress. There are four different anatomical abnormalities that contribute to the disease, all of which occur more commonly in brachycephalic breeds: an elongated soft palate, stenotic nares, a hypoplastic trachea, and everted laryngeal saccules (a condition which occurs secondary to the other abnormalities). Because all of these components make it more difficult to breathe in situations of exercise, stress, or heat, an animal with these abnormalities may be unable to take deep or fast enough breaths to blow off carbon dioxide. This leads to distress and further increases respiratory rate and heart rate, creating a vicious cycle that can quickly lead to a life-threatening situation. Brachycephalic dogs have a higher risk of dying during air travel and many commercial airlines refuse to transport them. Dogs experiencing a crisis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shih Tzu
The Shih Tzu (, ; literally " Hsi Shih dog") is a toy dog breed originating from Tibet and was bred from the Pekingese and the Lhasa Apso. Shih Tzus are known for their short snouts and large round eyes, as well as their long coat, floppy ears, and short and stout posture. They are well known for their playful personality and calm and friendly temperament. They are able to adapt well in different situations. Due to their highly independent nature, they are not considered the most obedient breed. Description The Shih Tzu is a sturdy dog with a small muzzle and normally has large dark brown eyes. The Chinese have described their head shapes as "owl head" and "lion head", and their mouth as "frog mouth". They have a soft and long double coat that will tangle and mat easily if not brushed at least every 2 or 3 days. A Shih Tzu should stand no more than 26.7 cm (10") at the withers and with an ideal weight of 4.0 to 7.5 kg (9 to 17 lb). Floppy ears are covered wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medical Genetics
Medical genetics is the branch tics in that human genetics is a field of scientific research that may or may not apply to medicine, while medical genetics refers to the application of genetics to medical care. For example, research on the causes and inheritance of genetic disorders would be considered within both human genetics and medical genetics, while the diagnosis, management, and counselling people with genetic disorders would be considered part of medical genetics. In contrast, the study of typically non-medical phenotypes such as the genetics of eye color would be considered part of human genetics, but not necessarily relevant to medical genetics (except in situations such as albinism). ''Genetic medicine'' is a newer term for medical genetics and incorporates areas such as gene therapy, personalized medicine, and the rapidly emerging new medical specialty, predictive medicine. Scope Medical genetics encompasses many different areas, including clinical practice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dolichocephaly
Dolichocephaly (derived from the Ancient Greek δολιχός 'long' and κεφαλή 'head') is a condition where the head is longer than would be expected, relative to its width. In humans, scaphocephaly is a form of dolichocephaly. Dolichocephalic dogs (such as German Shepherds) have elongated noses. This makes them vulnerable to fungal diseases of the nose such as aspergillosis. In humans the anterior–posterior diameter (length) of dolichocephaly head is more than the transverse diameter (width). It can be present in cases of Sensenbrenner syndrome, Crouzon syndrome, Sotos syndrome, CMFTD as well as Marfan syndrome Marfan syndrome (MFS) is a multi-systemic genetic disorder that affects the connective tissue. Those with the condition tend to be tall and thin, with long arms, legs, fingers, and toes. They also typically have exceptionally flexible joints a .... See also * Brachycephaly * Cephalic index * Plagiocephaly References External links Congenit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artificial Cranial Deformation
Artificial cranial deformation or modification, head flattening, or head binding is a form of body alteration in which the skull of a human being is deformed intentionally. It is done by distorting the normal growth of a child's skull by applying force. Flat shapes, elongated ones (produced by binding between two pieces of wood), rounded ones (binding in cloth), and conical ones are among those chosen or valued in various cultures. Typically, the shape alteration is carried out on an infant, as the skull is most pliable at this time. In a typical case, headbinding begins approximately a month after birth and continues for about six months. History Intentional cranial deformation predates written history; it was practiced commonly in a number of cultures that are widely separated geographically and chronologically, and still occurs today in a few areas, including Vanuatu. The earliest suggested examples were once thought to include Neanderthals and the Proto-Neolithic ''Homo sapi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Orthotics And Prosthetics Association
American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, people who self-identify their ancestry as "American" ** American English, the set of varieties of the English language native to the United States ** Native Americans in the United States, indigenous peoples of the United States * American, something of, from, or related to the Americas, also known as "America" ** Indigenous peoples of the Americas * American (word), for analysis and history of the meanings in various contexts Organizations * American Airlines, U.S.-based airline headquartered in Fort Worth, Texas * American Athletic Conference, an American college athletic conference * American Recordings (record label), a record label previously known as Def American * American University, in Washington, D.C. Sports teams Soccer * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Himalayan (cat)
The Himalayan (short for Himalayan Persian, or Colourpoint Persian as it is commonly referred to in Europe), is a breed or sub-breed of long-haired cat similar in type to the Persian, with the exception of its blue eyes and its point colouration, which were derived from crossing the Persian with the Siamese. Some registries may classify the Himalayan as a long-haired sub-breed of Siamese, or a colorpoint sub-breed of Persian. The World Cat Federation has merged them with the Colorpoint Shorthair and Javanese into a single breed, the Colorpoint. History There is little or no information from the literature or early pictorial representations to indicate how ancient the four main groups of cats are; these being the two varieties of tabby, the single coloured black or white, and the sex-linked orange (marmalade or tortoiseshell cats). In addition, there are other breeds of cat that are more closely controlled by humans, such as the Manx, the Persian, Siamese, and Abyssinian, to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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