humpback

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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 ?
Andrew Willson, from Five Oceans Environmental Services (5OES) in Muscat, said, "The implications of this first trans-oceanic crossing reported by the tag represents a significant break-through for regional scientists who until this last week have been challenged to understand if the humpback whales observed in the Arabian sea are connected -- or reside in their own discrete areas.
Suaad Al Harthi, Programme Director at the Environment Society of Oman, said: "The challenge is now on to connect multiple lines of evidence using the satellite tracking, photo identification and humpback song analysis from acoustic recording units from across the region to produce population estimates, understand connectivity in greater detail and identify important habitats.
com/dead-humpback-whale-found-stuck-on-cruise-ship-docking-in-seward-839/) A similar incident occurred in May 2016 when what also appeared to be a juvenile humpback whale was found impaled on the bow of a Holland America cruise ship as it pulled into port in Alaska.
Fin (Balaenoptera physalus) and humpback (Megaptera novaeangliae) whales are among the most abundant baleen whales in Scotia Sea (Orgeira et al.
In the Babuyan waters, false killer whales, pilot and melonhead whales are frequently sighted near humpback pods.
In 1999, a lone female humpback whale set off from Brazil's Atlantic coast, swimming east.
The number of humpback whales is growing annually by 10 to 11 per cent, so one of the best things we can do to reduce the risk to the whales and the people watching them is to abide by approach distances.
The phrase "monkey see, monkey do" also applies to humpback whales.
Minke whales tend to occur singly or in very loose aggregations, whereas fin and humpback whales form more cohesive groups.
The results of the study-conducted by researchers from Wildlife Conservation Society, Columbia University, and Australia -contradict previous humpback whale song comparisons.
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.