The spelling of the word "articulation acromioclavicularis" may seem daunting at first glance, but it follows standard phonetic rules. To break it down using the International Phonetic Alphabet (IPA), the first word is pronounced "ɑrtɪkjəˈleɪʃən," with the stress on the second syllable. The second word "ˌækrəʊmaɪəˈklævɪkjʊlərɪs" features a stressed first syllable and a long second syllable with a schwa sound, followed by the stressed "kla" syllable and ending with the schwa and "ris" sounds.
Articulation acromioclavicularis, also known as the acromioclavicular joint or AC joint, is a functional joint located at the junction between the lateral end of the clavicle (collarbone) and the acromion process of the scapula (shoulder blade). This joint is classified as a synovial joint, which means that it contains a synovial cavity filled with synovial fluid that helps reduce friction between the articulating bones.
The primary function of the articulation acromioclavicularis is to allow for the movement and stability of the shoulder complex. It enables the scapula to rotate and glide on the clavicle, thereby facilitating the mobility and range of motion necessary for various upper limb activities. This joint also plays a crucial role in transferring forces from the upper limb to the axial skeleton.
The articulation acromioclavicularis is connected by several ligaments, including the acromioclavicular ligament, coracoclavicular ligament, and coracoacromial ligament. These ligaments provide stability and restrict excessive movement at the joint. However, this joint is still susceptible to injury, especially in athletes or individuals who engage in activities involving repetitive overhead motions or direct trauma to the shoulder.
Common injuries to the articulation acromioclavicularis include sprains, strains, dislocations, and separations. These injuries can cause pain, limited range of motion, swelling, and tenderness. Treatment for such injuries can range from conservative measures, such as rest, ice, and physical therapy, to surgical intervention in severe cases.
In summary, the articulation acromioclavicularis is a synovial joint located at the junction between
Acromioclavicular articulation.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "articulation acromioclavicularis" is derived from a combination of Latin and Greek roots.
1. "Articulation" comes from the Latin word "articulatio", which means a joint or a connection.
2. "Acromioclavicularis" is a compound word consisting of multiple parts:
- "Acromion" comes from the Greek word "akros", meaning topmost or highest point, and "ōmos", meaning shoulder. It refers to the highest point of the scapula (shoulder blade).
- "Clavicula" is a Latin word meaning collarbone.
- "Aris" is a Greek suffix meaning "pertaining to".
Therefore, "articulation acromioclavicularis" refers to the joint between the acromion (part of the scapula) and the clavicle (collarbone).