Paroxysmal attacks or paroxysms are a sudden recurrence or intensification of symptoms, such as a spasm or seizure. These short, frequent symptoms can be observed in various clinical conditions. They are usually associated with multiple sclerosis or pertussis, but they may also be observed in other disorders such as encephalitis, head trauma, stroke, asthma, trigeminal neuralgia, breath-holding spells, epilepsy, malaria, tabes dorsalis, and Behçet's disease, paroxysmal nocturnal hemoglobinuria (PNH). It has also been noted as a symptom of gratification disorder in children.
Tabes dorsalis, also known as syphilitic myelopathy, is a slow degeneration of the neural tracts primarily in the dorsal columns of the spinal cord and dorsal roots. These nerves normally help maintain a person's sense of position (proprioception), vibration, and discriminative touch.
The desert iguana is one of the most common lizards of the Sonoran and Mojave deserts of the southwestern United States and northwestern Mexico. They also occur on several Gulf of California islands. Their color is mostly grey and tan.
Abadie's symptoms of tabes dorsalis may be elicited during clinical examination. Pinching of, or the application of firm pressure to, the Achilles tendon does not result in pain in tabes dorsalis. This is because the sense of deep pain has been abolished.
The bay duiker, also known as the black-striped duiker and the black-backed duiker, is a forest-dwelling duiker native to western and southern Africa. It was first described by British zoologist John Edward Gray in 1846. Two subspecies are identified. The bay duiker is reddish brown and has a moderate size. Both sexes reach 44–49 cm (17–19 in) at the shoulder. The sexes do not vary considerably in their weights, either; the typical weight range for this duiker is 18–23 kg (40–51 lb). Both sexes have a pair of spiky horns, measuring 5–8 cm (2.0–3.1 in). A notable feature of this duiker is the well-pronounced solid stripe of black extending from the back of the head to the tail.
In human anatomy, the dorsalis pedis artery, is a blood vessel of the lower limb that carries oxygenated blood to the dorsal surface of the foot. It is located 1/3 from medial malleolus. It arises at the anterior aspect of the ankle joint and is a continuation of the anterior tibial artery. It terminates at the proximal part of the first intermetatarsal space, where it divides into two branches, the first dorsal metatarsal artery and the deep plantar artery. The dorsalis pedis communicates with the plantar blood supply of the foot through the deep plantar artery.
The American three-toed woodpecker is a medium-sized woodpecker, which is native to North America.
The dorsal raphe nucleus is located on the midline of the brainstem and is one of the raphe nuclei. It has rostral and caudal subdivisions.
The plantar arch is a circulatory anastomosis formed from:
The sharptooth smooth-hound is a houndshark of the family Triakidae. It is found on the continental shelves of the tropical eastern Pacific from southern Mexico to Peru between latitudes 20°N and 5°S. Its length is up to 64 cm.
The cliff chipmunk is a small, bushy-tailed squirrel that typically lives along cliff walls or boulder fields bordering Pinyon-juniper woodlands in the Western United States and Mexico. Cliff chipmunks are very agile, and can often be seen scaling steep cliff walls. Cliff chipmunks do not amass body fat as the more common ground squirrel does. They create a "stash" of food which they frequent during the cold winter months. The chipmunks size varies from 8-10 in. and weigh an average of 2.5 oz. These small creatures live to a staggering 12 1/2 years. The chipmunks are brown on their underside and gray on the back with white stripes on their face.
The black-striped wallaby, also known as the scrub wallaby, is a medium-sized wallaby found in Australia, from Townsville in Queensland to Narrabri in New South Wales. In New South Wales it is only found west of the Great Dividing Range. It is decreasing in these areas, but is not classified as threatened as a species yet. The New South Wales population, however, is classified as endangered.
The first dorsal metatarsal artery is a small artery on the back of the foot. It runs forward on the first interosseous dorsalis muscle, and at the cleft between the great and second toes divides into two branches, one of which passes beneath the tendon of the extensor hallucis longus muscle, and is distributed to the medial border of the great toe; the other bifurcates to supply the adjoining sides of the great and second toes.
The narrow-striped dasyure or narrow-striped marsupial shrew is a species of marsupial in the family Dasyuridae found in West Papua, Indonesia and Papua New Guinea. Its natural habitat is subtropical or tropical dry forests.
The striped treeshrew is a treeshrew species within the Tupaiidae. It is endemic to Borneo and known only from a few individuals in Sabah, Sarawak, Brunei and Kalimantan.
Thomas's broad-nosed bat is a species of bat in the family Phyllostomidae. It is found in Bolivia, Colombia, Ecuador, Panama, and Peru.
The chilli thrips or yellow tea thrips, Scirtothrips dorsalis Hood, is an extremely successful invasive species of pest-thrips which has expanded rapidly from Asia over the last twenty years, and is gradually achieving a global distribution. It has most recently been reported in St. Vincent (2004) Florida (2005), Texas (2006), and Puerto Rico (2007). It is a pest of economic significance with a broad host range, with prominent pest reports on crops including pepper, mango, citrus, strawberry, grapes, cotton, tea, peanuts, blueberry, and roses. Chilli thrips appear to feed preferentially on new growth, and infested plants usually develop characteristic wrinkled leaves, with distinctive brown scarring along the veins of leaves, the buds of flowers, and the calyx of fruit. Feeding damage can reduce the sale value of crops produced, and in sufficient numbers, kill plants already aggravated by environmental stress. This thrips has also been implicated in the transmission of three tospoviruses, but there is some controversy over its efficiency as a vector.
Xylorhizini is a tribe of longhorn beetles of the Lamiinae subfamily. It was described by Lacordaire in 1872.
Parathylactus is a genus of longhorn beetles of the subfamily Lamiinae, containing the following species:
Parathylactus sumatranus is a species of beetle in the family Cerambycidae. It was described by Stephan von Breuning and de Jong in 1941. It is known from Sumatra.
