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Hypoplasia Of Dens
Hypoplasia of dens is a congenital non-formation of the pivot point of the second cervical vertebra, which leads to spinal cord damage."Hereditary and Congenital Diseases of Purebred Dogs." Retrieved from on 2007-03-13. Onset of the condition may occur at any age, producing signs ranging from neck pain to quadriplegia."Breed Predisposition to Disease and Congenital Conditions," ''Dr. Bob's All Creatures Site''. Retrieved from http://www.petdoc.ws/BreedPre.htm on 2007-03-13. Hypoplasia of dens affects dogs. It is more commonly seen in certain breeds, including the Chihuahua, the Papillon, the Pointer and the Yorkshire Terrier The Yorkshire Terrier (often shortened as Yorkie) is one of the smallest dog breeds of the terrier type and indeed of any dog breed. The breed developed during the 19th century in Yorkshire, England. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Congenital
A birth defect, also known as a congenital disorder, is an abnormal condition that is present at birth regardless of its cause. Birth defects may result in disabilities that may be physical, intellectual, or developmental. The disabilities can range from mild to severe. Birth defects are divided into two main types: structural disorders in which problems are seen with the shape of a body part and functional disorders in which problems exist with how a body part works. Functional disorders include metabolic and degenerative disorders. Some birth defects include both structural and functional disorders. Birth defects may result from genetic or chromosomal disorders, exposure to certain medications or chemicals, or certain infections during pregnancy. Risk factors include folate deficiency, drinking alcohol or smoking during pregnancy, poorly controlled diabetes, and a mother over the age of 35 years old. Many are believed to involve multiple factors. Birth defects may be vi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cervical Vertebra
In tetrapods, cervical vertebrae (singular: vertebra) are the vertebrae of the neck, immediately below the skull. Truncal vertebrae (divided into thoracic and lumbar vertebrae in mammals) lie caudal (toward the tail) of cervical vertebrae. In sauropsid species, the cervical vertebrae bear cervical ribs. In lizards and saurischian dinosaurs, the cervical ribs are large; in birds, they are small and completely fused to the vertebrae. The vertebral transverse processes of mammals are homologous to the cervical ribs of other amniotes. Most mammals have seven cervical vertebrae, with the only three known exceptions being the manatee with six, the two-toed sloth with five or six, and the three-toed sloth with nine. In humans, cervical vertebrae are the smallest of the true vertebrae and can be readily distinguished from those of the thoracic or lumbar regions by the presence of a foramen (hole) in each transverse process, through which the vertebral artery, vertebral veins, and inferio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spinal Cord
The spinal cord is a long, thin, tubular structure made up of nervous tissue, which extends from the medulla oblongata in the brainstem to the lumbar region of the vertebral column (backbone). The backbone encloses the central canal of the spinal cord, which contains cerebrospinal fluid. The brain and spinal cord together make up the central nervous system (CNS). In humans, the spinal cord begins at the occipital bone, passing through the foramen magnum and then enters the spinal canal at the beginning of the cervical vertebrae. The spinal cord extends down to between the first and second lumbar vertebrae, where it ends. The enclosing bony vertebral column protects the relatively shorter spinal cord. It is around long in adult men and around long in adult women. The diameter of the spinal cord ranges from in the cervical and lumbar regions to in the thoracic area. The spinal cord functions primarily in the transmission of nerve signals from the motor cortex to the body, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chihuahua (dog)
The Chihuahua or es, Chihuahueño, italic=no is a Mexican breed of toy dog. It is named for the Mexican state of Chihuahua and is among the smallest of all dog breeds. It is usually kept as a companion animal or for showing. History DNA studies suggest that native American dogs entered North America from Siberia roughly 10,000 years ago, and were then isolated for some 9000 years until the arrival of the first Europeans; these pre-contact dogs exhibited a unique genetic signature that is now almost gone. A study based on sequencing of ancient dog genomes, published in 2020, suggests that this pre-colonial ancestry survives in two Mexican breeds, to the extent of about 4% in the Chihuahua (and some 3% in the Xoloitzcuintli). Colonial records refer to small, nearly hairless dogs at the beginning of the nineteenth century; one claims that sixteenth-century conquistadores found them plentiful in the region later known as Chihuahua. In a letter written in 1520, Hernan Cor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Papillon (dog)
The Papillon (, French for 'butterfly eared), also called the Continental Toy Spaniel, is a breed of dog, of the spaniel type. One of the oldest of the toy spaniels, it derives its name from its characteristic butterfly-like look of the long and fringed hair on the ears. A Papillon with dropped ears is called a Phalene. Appearance and behavior Papillons are very intelligent and self-assured dogs that have a very easy time learning new tricks. These dogs can be sociable with children and strangers, but are generally reserved around new people. They can also be socialized to get along well with other pets, but care should be taken with rambunctious pets or cats with claws, as they may injure them. If not properly socialized, Papillons can be distrustful and exhibit aggressive tendencies toward other dogs and people. Papillons may also be very playful and affectionate. Widely known as great companion dogs, they have the spirit and energy to keep up with active families, but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pointer (dog Breed)
The Pointer, sometimes called the English Pointer, is a medium-sized dog breed, breed of pointing dog developed in England. Pointers are used to find game for Hunting, hunters, and are considered by Gun dog, gundog enthusiasts to be one of the finest breeds of its type; however, unlike most other hunting breeds, its purpose is to point, not retrieve game. The popular belief is that the Pointer descends from the Old Spanish Pointer that was brought to England from Spain with returning soldiers at the beginning of the 18th century. Once in England, they were crossed with local dog breeds to improve the breed's hunting abilities. Etymology The Pointer takes its name from the stance it adopts when it detects the scent of game, "pointing" at the hidden game as a visible signal to the hunter that it has found something and where it is; the breed is sometimes called the English Pointer to differentiate it from other pointing dog breeds. The term "bird dog" is usually used to describ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yorkshire Terrier
The Yorkshire Terrier (often shortened as Yorkie) is one of the smallest dog breeds of the terrier type and indeed of any dog breed. The breed developed during the 19th century in Yorkshire, England."Get to Know the Yorkshire , 'The American Kennel Club', retrieved 19 May 2014 Ideally its maximum size is . A popular , the Yorkshire Terrier has also been part of the development of other breeds, such as the . Most have a black and tan coat, but they are also known to have a silver-grey or a blonde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
