It's the non-bony extension (continuation) of the ribs,
that connects the ribs and the sternum (breast bone),
thus forming a complete framework for the thoracic space.
At the thorax (ribs)
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If you are looking for a single bone meaning thorax, there isn't one. The thorax is a region or area of the body, rather than a singular bone name. The thorax is the part of the body from the neck to the diaphram. In insects, its the part of the body with the legs and wings. Its the middle segment in an arthropod. The bones in the thorax consists of the ribs, the spine and the cartilage sternum. These are a protective cage for the vital organs, the lungs and the heart. See the related link for more information.
A bony thorax refers to the skeletal structure of the chest, which includes the ribs, sternum, and thoracic vertebrae. In terms of someone's age, a bony thorax can indicate growth and development stages, as the thoracic cavity evolves from infancy through adolescence. A more defined bony thorax may suggest maturity and proper skeletal development, while underdeveloped or abnormal thoracic structures could indicate health issues or developmental delays. Overall, the condition and appearance of the bony thorax can provide insights into an individual's age-related growth patterns.
No, they are bony fishes.
hyaline cartilage
No sharks are not 'bony'. The skeletal makeup of sharks is cartilage. Although cartilage is dense and can be bone-like it is significantly less dense than bone.
When referring to a radiographic image, or x-ray, bony thorax is intact simply refers to the bones are present without fracture. This means that there is no pathological condition or abnormalities found.
bony; the only cartilaginous fish currently in existence are sharks, skates, and rays.
Ribs and sternum
The scapula
ribs and sternum