humpback

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Related to Humpbacks: Megaptera novaeangliae, Megaptera, Humpback Whales

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.
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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 ?
Local whalewatchers estimate anywhere from 15 to 20 individual humpbacks have been feeding off the Slea Head peninsula in West Kerry this summer.
Through this remarkable film, audiences will learn why the humpbacks sing, how they feed, and why they migrate up to 10,000 miles each year.
Humpbacks are remarkable as long-distance swimmers but also for their ability to breach - jump clear out of the water - and for their singing.
The humpback highway, stretching from the icy cold waters of the Antarctic to the balmy waters of the Great Barrier Reef, is once again flowing with traffic.
The research team then used network analysis to draw connections between whales--a social network for humpbacks.
RARE sightings of humpback or fin whales have been reported off the coast of Anglesey.
Washington, Feb 2 ( ANI ): Scientists have found that humpback whales on both sides of the southern Indian Ocean sing different tunes.
Humpbacks migrate from their summer feeding grounds near the poles to warmer winter breeding waters.
They have issued a warning to fishermen, telling them to kill any humpbacks they catch and report the find to the government.
While humpbacks normally migrate along a north-to-south axis to feed and mate, this one - affectionately called AHWC No.
This is prime mating season for the humpbacks as they stay in warmer tropical waters until September before returning to Antarctic waters.
The satellite tagging results will provide information on the medium-scale movement of humpbacks in their Antarctic feeding grounds, and links between their Antarctic feeding grounds and their tropical breeding grounds.