CLAVICLES Meaning and
Definition
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Clavicles, also known as collarbones, are long curved bones that form part of the skeletal structure in vertebrates. They are situated horizontally and connect the shoulder blades (scapulae) to the sternum or breastbone in the human body. Clavicles are positioned above the first rib and serve as a point of attachment for various muscles and ligaments, aiding in the movement and stability of the shoulder girdle.
In terms of structure, clavicles are slender, S-shaped bones that are relatively easy to observe and palpate, as they lie just beneath the skin. Their curved shape allows them to provide support and flexibility to the upper limb, directing forces from the upper limb to the axial skeleton and allowing for a wide range of arm motions.
Functionally, the clavicles serve numerous purposes. They provide structural support and help maintain the shoulder's stability, functioning as struts that transfer forces across the shoulder joint while keeping it away from the thorax. Additionally, clavicles protect underlying neurovascular structures, such as blood vessels and nerves, from potential injuries.
The presence of clavicles is a defining characteristic of mammals and is absent in most other vertebrate groups. Their evolution is believed to be linked to the development of mammalian locomotion and the need for increased mobility of the forelimbs. Clavicles play an essential role in the overall skeletal and functional integrity of the upper body, enabling humans and other mammals to perform a wide range of essential activities, such as reaching, throwing, and pushing.
Common Misspellings for CLAVICLES
Etymology of CLAVICLES
The word "clavicles" derives from the Latin term "clāviculae", which is the plural form of "clāvicula". "Clāvicula" is a diminutive of the Latin word "clāvis", meaning "key". This is due to the shape of the clavicle bones, which resemble a key when held horizontally. The term was initially used by Greek anatomist Galen, who referred to the clavicles as the "keybones" of the shoulder. Over time, "clavicles" became the standard term in English for these collarbones.
Similar spelling words for CLAVICLES
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