The term "articulation humeri" is used to describe the shoulder joint, where the humerus bone connects to the scapula. Its spelling is based on the Latin roots "articulatio" (meaning joint) and "humerus" (meaning upper arm bone). This word can be pronounced as /ɑːtɪkjʊˈleɪʃən ˈhjuːməraɪ/ using the International Phonetic Alphabet (IPA). The stress is on the second syllable of "articulation" and the first syllable of "humeri". Proper spelling of medical terminology is important for effective communication among healthcare professionals.
Articulation humeri, also known as the shoulder joint, refers to the point of connection between the upper arm bone (humerus) and the socket of the shoulder blade (scapula). It is a synovial joint, meaning it is surrounded by a synovial membrane filled with synovial fluid that helps lubricate and protect the joint.
The articulation humeri is a highly mobile joint that allows for a wide range of movement in the upper extremity. It is considered a ball and socket joint, as the rounded head of the humerus fits into the shallow socket of the scapula, known as the glenoid cavity. This structure provides stability to the joint while still allowing for ample movement.
The joint is reinforced by a group of ligaments that help to hold the bones together and provide additional stability. These ligaments include the glenohumeral ligaments, coracohumeral ligament, and the superior, middle, and inferior glenohumeral ligaments.
The shoulder joint is involved in numerous activities and movements, such as lifting, reaching, and throwing. Its mobility and versatility make it one of the most complex joints in the body, but this complexity also makes it susceptible to injury and instability if not properly cared for. Common shoulder injuries include dislocations, rotator cuff tears, and impingements.
Overall, the articulation humeri plays a crucial role in facilitating upper limb movement, enabling a wide range of activities, and contributing to the overall functionality of the human body.
Humeral articulation, shoulder joint.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The term "articulation humeri" is derived from Latin. Here is the breakdown:
1. "Articulation" comes from the Latin word "articulatio", which means "joint" or "articulation".
2. "Humeri" is the possessive form of the Latin word "humerus", which means "the bone of the upper arm or forelimb, corresponding to the bone between the shoulder and the elbow in humans".
Therefore, "articulation humeri" refers to the joint or articulation of the humerus bone.