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A joint is the location at which two or more bones make contact. They are constructed to allow movement and provide mechanical support, and are classified structurally and functionally. Joints are mainly classified structurally and functionally. Structural classification is determined by how the bones connect to each other, while functional classification is determined by the degree of movement between the articulating bones. In practice, there is significant overlap between the two types of

The Quest Joint Airlock, previously known as the Joint Airlock Module, is the primary airlock for the International Space Station. Quest was designed to host spacewalks with both Extravehicular Mobility Unit (EMU) spacesuits and Orlan space suits. The airlock was launched on STS 104 on July 14, 2001. Before Quest was attached, Russian spacewalks using Orlan suits could only be done from the Zvezda service module and American spacewalks using EMUs were only possible when a Space Shuttle was

Joint Base Langley–Eustis (IATA: LFI, ICAO: KLFI, FAA LID: LFI) is a United States military facility located in Hampton and Newport News, Virginia. The facility is under the jurisdiction of the United States Air Force 633rd Air Base Wing, Air Combat Command (ACC) The facility is an amalgamation of the United States Air Force's Langley Air Force Base and the United States Army's Fort Eustis which were merged on 1 October 2010. Joint Base Langley–Eustis was established in accordance with

Arthralgia (from Greek arthro , joint + algos, pain) literally means joint pain; it is a symptom of injury, infection, illnesses (in particular arthritis) or an allergic reaction to medication. According to MeSH, the term arthralgia should only be used when the condition is non inflammatory, and the term arthritis should be used when the condition is inflammatory. Diagnosis involves interviewing the patient and performing physical exams. When attempting to establish the cause of the