Humerus 227807 225325266 2008-07-13T02:45:09Z Andy Christ 70717 /* Popular culture */ {{Infobox Bone | Name = Humerus | Latin = | GraySubject = 51 | GrayPage = 209 | Image = Illu_upper_extremity.jpg | Caption = Upper extremity | Image2 = HumerusFront.png | Caption2 = | Articulations = | MeshName = Humerus | MeshNumber = A02.835.232.087.090.400 | DorlandsPre = | DorlandsSuf = }} {{selfref|"Funny Bone" redirects here. For the comedy-drama film, see [[Funny Bones]].}} The '''humerus''' is a [[long bone]] in the [[arm]] or [[forelimb]] that runs from the [[shoulder]] to the [[elbow]]. Anatomically, it connects the [[scapula]] and the [[ulna]], and consists of the following three sections: * [[Upper extremity of humerus]] * [[Body of humerus]] * [[Lower extremity of humerus]] == Muscle insertions and origins == * The [[deltoid]] originates on the lateral 1/3rd of the clavicle,acromion and the spine of the scapula, it is inserted on the [[deltoid tuberosity]] of the humerus and has several actions including abduction, extension, and rotation * [[Pectoralis major]], [[teres major]] and [[latissimus dorsi]] insert at the ''intertubercular groove'' of the humerus. They work to adduct and medially rotate the humerus. * [[Biceps brachii]], [[brachialis]], [[coracobrachialis]], and [[brachioradialis]] (which attaches very distally) act to flex the elbow. The [[biceps brachii|biceps]], however, does not attach to the humerus. * [[Triceps brachii]] and [[anconeus]] extend the elbow, and attach to the posterior side of the humerus. == Clinical considerations == The most common type of shoulder dislocation is an anterior or inferior dislocation of the humerus of the [[glenohumeral joint]]. This dislocation has the potential to injure the [[axillary nerve]] or [[axillary artery]]. Signs and symptoms of this dislocation include a loss of the normal shoulder contour and a palpable depression under the acromion. ==Funny bone== The [[ulnar nerve]] at the distal end of the humerus near the elbow is sometimes referred to in popular culture as 'the funny bone'. Striking this nerve can cause a tingling sensation ("funny" feeling), and sometimes a significant amount of pain. ==See also== *[[Hill-Sachs lesion]] ==Additional images== <gallery> Image:Shoulderjoint.PNG|Diagram of the human shoulder joint Image:Human arm bones diagram.svg|Human arm bones diagram Image:Humerus ant.jpg|Humerus (right) - anterior view Image:Humerus post.jpg|Humerus (right) - posterior view Image:HumerusFront.png|Left humerus. Anterior view. Image:HumerusBack.png|Left humerus. Posterior view. Image:Gray326.png|The left shoulder and acromioclavicular joints, and the proper ligaments of the scapula. Image:Gray413_color.png|Cross-section through the middle of upper arm. Image:Gray420.png|The Supinator. </gallery> {{Gray's}} {{Bones of upper extremity}} [[Category:Bones of thoracic limb]] [[Category:Long bones]] [[ar:عظم عضد]] [[bn:প্রগণ্ডাস্থি]] [[ca:Húmer]] [[cs:Pažní kost]] [[da:Humerus]] [[de:Oberarmknochen]] [[dv:މުލައްދަނޑި ކަށިގަނޑު]] [[es:Húmero]] [[eo:Humero]] [[fr:Humérus]] [[id:Tulang lengan atas]] [[it:Omero (anatomia)]] [[he:עצם הזרוע]] [[la:Humerus]] [[lt:Žastikaulis]] [[hu:Felkarcsont]] [[nl:Opperarmbeen]] [[ja:上腕骨]] [[no:Humerus]] [[pl:Kość ramienna]] [[pt:Úmero]] [[sk:Ramenná kosť]] [[sl:Nadlahtnica]] [[fi:Olkaluu]] [[sv:Överarmsben]] [[te:భుజాస్థి]] [[th:กระดูกต้นแขน]] [[tr:Humerus]] [[uk:Плечова кістка]] [[zh:肱骨]]