humpback


Also found in: Dictionary, Thesaurus, Medical, Financial, Wikipedia.

humpback:

see hunchbackhunchback,
abnormal outward curvature of the spine in the thoracic region. It is also known as kyphosis and humpback, and in its severe form a noticeable hump is evident on the back.
..... Click the link for more information.
.

Humpback

 

a deformity of the spine that develops as a result of various diseases or injuries of the spine (most frequently in tubercular spondylitis). As a result of a pathological process, destruction of some vertebral bodies occurs, resulting in their deformation, which in its turn entails curvature of the spine in anterior-posterior and lateral directions. When humpback develops in children or young people, deformation of the spine is severe, inasmuch as further development of the skeleton does not proceed normally. A humpback in the form of a rounded protuberance in the back may form in rickets, as a result of changes in bone tissue. Rickety humpback is usually corrected with timely and correct treatment of rickets. The whole thorax is deformed simultaneously with the formation of a humpback—a so-called costal hump is formed, which also develops in lateral curvatures of the spine (scolioses). Prophylaxis of humpback formation in tubercular spondylitis consists of early and correct treatment of the tubercular process; in rickets preventive measures in administering antirachitic treatment, restraining the infant from sitting up too early, placing the infant on its abdomen from the age of 2½ months, massaging the back muscles, and exercising.

A special place is occupied by so-called cardiac hump—a protuberance of the thorax in the region of the heart, usually observed in young people who suffer from cardiac defects (chiefly aortic insufficiency).

humpback

[′həmp‚bak]
(medicine)

humpback

1. another word for hunchback
2. a large whalebone whale, Megaptera novaeangliae, closely related and similar to the rorquals but with a humped back and long flippers: family Balaenopteridae
3. a Pacific salmon, Oncorhynchus gorbuscha, the male of which has a humped back and hooked jaws
4. Brit a road bridge having a sharp incline and decline and usually a narrow roadway
References in periodicals archive ?
At least now when people have that debate, he says, humpback whales will have to be part of it.
For example, local fishermen and fisheries officials told us of year-round sightings of Indo-Pacific humpback dolphin in Luoyuanwan Bay (Fuzhou) and SanduaoBay (Ningde).
Sea Watch experts believe that from his description of their size and behaviour it is likely they were humpbacks or fin whales rather than the more common minke.
Alaska Department of Fish and Game population abundance estimates in 2008 (Wuttig, 2009) and model simuladon results of spear fishing harvest impacts on humpback whitefish and least cisco abundance (Edenfield, 2009) suggest that an annual allowable harvest of 2000 whitefish is currently sustainable in the Chatanika River.
Humpback whales were successfully sighted in 37 (86%) of 43 trips in waters ranging from less than 20 to 200 m depth in a study area of approximately 74 km2.
It was by browsing photo-sharing site Flickr that one of Stevick's colleagues found a photo of this particular humpback, taken by a Norwegian tourist from a whale-watching vessel off the coast of Madagascar in 2001.
Photo identification will also help build a picture of humpback population distribution.
Exmouth is a top vantage point for spotting the whales and last month a baby humpback was spotted taking its first breath in nearby waters.
Humpbacks, which take their name from the ''hump'' in front of their small dorsal fin, annual migrate from warm, low-latitude breeding and calving grounds to cooler, high-latitude feeding grounds this time of year, but Hung said the route they take in this part of the world is usually near the Philippines.
Arabian Sea humpback whales have been designated as an endangered sub-population on the International Union for the Conservation of Nature's (IUCN) Red List of threatened species, and have become a global priority for research and conservation.
Luban', an Arabian Sea humpback whale tagged in the Gulf of Masirah last November, has made the first recorded transoceanic crossing across the Arabian Sea.
by Staff ReporterThe satellite-tracked Arabian humpback whale arrived in Kerala waters on January 1, and had left the Gulf of Oman two months ago.