The spelling of the word "articulation atlantooccipitalis" may seem intimidating at first glance, but it follows the principles of phonetic transcription using IPA symbols. The word has a total of 11 syllables, with stress on the fourth and eighth syllables. The "a" in "articulation" is pronounced as "ar," while the "o" in " atlantooccipitalis" sounds like "oh." The "c" in "occipitalis" is softened to a "ch" sound, and the "ti" combination in "articulation" is pronounced "sh." With this knowledge, pronouncing this complex term becomes much easier.
Articulation atlantooccipitalis, also known as the atlanto-occipital joint, is a specialized joint in the human body that connects the uppermost vertebra of the neck, called the atlas (C1 vertebra), with the base of the skull, known as the occipital bone. It plays a pivotal role in the movement and stability of the head.
This joint is classified as a synovial joint, meaning it contains a synovial cavity filled with synovial fluid that lubricates and reduces friction between the bones during movement. The articulation atlantooccipitalis is a hinge joint, allowing for flexion and extension of the head. It facilitates nodding movements, which involve a "yes" motion.
The atlanto-occipital joint is formed by the concave superior facets on the atlas, which articulate with the convex occipital condyles on the skull. Ligaments, including the anterior and posterior atlantooccipital membranes, provide stability and limit excessive movements. Additionally, the joint is reinforced by muscles that surround and support it.
Due to its important role in neck and head movements, any abnormalities or dysfunctions in the articulation atlantooccipitalis can result in various health issues such as restricted movement, headaches, neck pain, or even neurological symptoms. Understanding the structure and function of this joint is crucial in diagnosing and treating any related conditions.
Atlanto-occipital or atlo-occipital articulation.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "articulation atlantooccipitalis" is composed of three Latin-based words: "articulation", "atlanto-", and "occipitalis".
1. "Articulation" comes from the Latin word "articulatio", which means "a joint" or "the act of jointing". It derives from the verb "articulare", meaning "to divide into distinct parts", ultimately stemming from the noun "artus", meaning "joint" or "limb".
2. "Atlanto-" refers to the anatomical region of the atlas bone, which is the first vertebra of the neck. The term "atlas" itself comes from the Greek mythological figure, Atlas, who was condemned to support the heavens on his shoulders. The association of the atlas bone with this task led to its name.