Pivot joint - wikipedia Pivot joint Pivot joint 1 : Ball and socket joint ; 2 : Condyloid joint ( Ellipsoid ) ; 3 : Saddle joint ; 4 Hinge joint ; 5 : Pivot joint ; Details Identifiers Latin articulatio trochoidea Dorlands / Elsevier a_64 / 12161674 TA A03. 0.00. 045 Anatomical terminology ( edit on Wikidata ) In animal anatomy, a pivot joint ( trochoid joint, rotary joint, lateral ginglymus ) is a type of synovial joint. In pivot joints, the axis of a convex articular surface is parallel with the longitudinal axis of the bone. According to one classification system, a pivot joint like the other synovial joint -- the hinge joint has one degree of freedom. Note that the degrees of freedom of a joint is not the same as the same as joint 's range of motion. Contents 1 Movements 2 Examples 3 References 4 External links Movements Pivot joints allow for rotation, which can be external ( for example when rotating an arm outward ), or internal ( as in rotating an arm inward ). When rotating the forearm, these movements are typically called pronation and supination. In the standard anatomical position, the forearms are supinated, which means that the palms are facing forward, and the thumbs are pointing away from the body. In contrast, a forearm in pronation would have the palm facing backward and the thumb would be closer to the body, pointing medially. Examples Examples of a pivot joint include : Proximal radioulnar joint Distal radioulnar joint Median atlanto - axial joint In contrast, spherical joints ( or ball and socket joints ) such as the hip joint permit rotation and all other directional movement, while pivot joints only permit rotation. References This article incorporates text in the public domain from the 20th edition of Gray 's Anatomy ( 1918 ) Jump up ^ Platzer, Werner ( 2008 ) Color Atlas of Human Anatomy, Volume 1, p. 28 External links Wikimedia Commons has media related to Pivot joints. Synovial Joints - Pivot Joints from The University of Michigan Medical School Joints Types Fibrous Gomphosis Suture Syndesmosis Interosseous membrane Cartilaginous Synchondrosis Symphysis synovial : Plane joint 1 ° Hinge joint Pivot joint 2 ° Condyloid joint Saddle joint 3 ° Ball and socket joint synostosis by range of motion : Synarthrosis Amphiarthrosis Diarthrosis Terminology Kinesiology Anatomical terms of motion Agonist / Antagonist Motions general : Flexion / Extension Adduction / Abduction Internal rotation / External rotation Elevation / Depression specialized / upper limbs : Protraction / Retraction Supination / Pronation specialized / lower limbs : Plantarflexion / Dorsiflexion Eversion / Inversion Components capsular : Joint capsule Synovial membrane Fibrous membrane Synovial fluid Synovial bursa Articular disk / Meniscus extracapsular : Ligament Enthesis Retrieved from `` https://en.wikipedia.org/w/index.php?title=Pivot_joint&oldid=812865676 '' Categories : Wikipedia articles incorporating text from the 20th edition of Gray 's Anatomy ( 1918 ) Joints Hidden categories : Medicine infobox template using GraySubject or GrayPage Medicine infobox template using Dorlands parameter Talk Contents About Wikipedia Deutsch Eesti فارسی Nederlands Norsk nynorsk Polski Edit links This page was last edited on 30 November 2017, at 09 : 26. Text is available under the Creative Commons Attribution - ShareAlike License ; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia ® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. About Wikipedia

Question: what is a pivot joint in the body
Answer: a type of synovial joint