The spelling of "shoulder blade" may seem straightforward, but its pronunciation can be tricky. In IPA phonetic transcription, it is pronounced /ˈʃoʊldər ˌbleɪd/. The first syllable is pronounced with the "sh" sound, followed by the "oh" sound. The second syllable has a short "u" sound (as in "hut") followed by the "l" sound. The final syllable has a long "a" sound (as in "hay") followed by the "d" sound. Remembering the phonetic transcription can help ensure proper pronunciation of this word.
The term "shoulder blade" refers to one of the two flat, triangular bones located on each side of the upper back, commonly known as the scapula. It is an essential component of the skeletal system that plays a fundamental role in the movement and stability of the shoulder joint.
The shoulder blade is situated towards the back of the thorax, between the second and seventh rib. It connects the collarbone (clavicle) to the upper arm bone (humerus) through a joint called the shoulder socket or glenoid cavity. This bone is renowned for its prominent ridge, called the spine of the scapula, which protrudes along the superior portion.
The shoulder blade facilitates various movements, enabling the arm to raise, rotate, and extend in multiple directions. It acts as an attachment site for numerous muscles involved in arm, shoulder, and back movements, providing stability, control, and range of motion. Moreover, the shoulder blade is protected by a network of muscles and ligaments that help maintain its position and prevent dislocation.
In conclusion, the shoulder blade is a vital bone within the human anatomy that forms part of the shoulder joint complex. It contributes to the support, mobility, and stability of the upper body, facilitating a wide range of arm movements necessary for daily activities and functional tasks.
Scapula.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The flat bone of the shoulder.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "shoulder blade" comes from Old English. The word "shoulder" in Old English was "sceolde", derived from Proto-Germanic "skuldrō" which means "shoulder". The word "blade" in Old English was "blæd", which referred to the flat, broad part. So, when combined, "shoulder blade" referred to the flat, broad bone on each shoulder.