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30,000 (2015) [ 4 ] Rheumatoid arthritis (RA) is a long-term autoimmune disorder that primarily affects joints. [ 1 ] It typically results in warm, swollen, and painful joints. [ 1 ] Pain and stiffness often worsen following rest. [ 1 ] Most commonly, the wrist and hands are involved, with the same joints typically involved on both sides of the ...
Joint capsule. Diagrammatic section of a diarthrodial joint. In anatomy, a joint capsule or articular capsule is an envelope surrounding a synovial joint. [1] Each joint capsule has two parts: an outer fibrous layer or membrane, and an inner synovial layer or membrane.
The joint space equals the distance between the involved bones of the joint. A joint space narrowing is a sign of either (or both) osteoarthritis and inflammatory degeneration. [12] The normal joint space is at least 2 mm in the hip (at the superior acetabulum), [13] at least 3 mm in the knee, [14] and 4–5 mm in the shoulder joint. [15]
The interphalangeal joints of the foot are the joints between the phalanx bones of the toes in the feet. Since the great toe only has two phalanx bones (proximal and distal phalanges), it only has one interphalangeal joint, which is often abbreviated as the " IP joint ". The rest of the toes each have three phalanx bones (proximal, middle, and ...
Standard anatomical terms of location are used to describe unambiguously the anatomy of animals, including humans. The terms, typically derived from Latin or Greek roots, describe something in its standard anatomical position. This position provides a definition of what is at the front ("anterior"), behind ("posterior") and so on.
Also Centering spring cylinder. A cylindrical cast-iron holder in which an adjusting string is placed. Adjusting spring seat A casting, or a part of the bolster of a two-wheel trailing truck, forming a bearing for the end of the adjusting spring. Admission The opening of steam port to admit steam to one end of a cylinder. If the valve has no lead, admission takes place at the moment the piston ...
This article's list of alumni may not follow Wikipedia's verifiability policy. Please improve this article by removing names that do not have independent reliable sources showing they merit inclusion in this article AND are alumni, or by incorporating the relevant publications into the body of the article through appropriate citations.
Machu Picchu[a] is a 15th-century Inca citadel located in the Eastern Cordillera of southern Peru on a mountain ridge at 2,430 meters (7,970 ft). [9] Often referred to as the "Lost City of the Incas", [10] it is the most familiar icon of the Inca Empire. It is located in the Machupicchu District within Urubamba Province [11] above the Sacred ...