AskDefine | Define humerus

Dictionary Definition

humerus n : bone extending from the shoulder to the elbow [also: humeri (pl)]

User Contributed Dictionary

English

Pronunciation

  • hyo͞o'mərəs, /ˈhjuːmərəs/, /"hju:m@r@s/
    Homophones: humorous

Noun

  1. The bone of the upper arm.

Translations

Extensive Definition

The humerus is a long bone in the arm or forelimb that runs from the shoulder to the elbow. Anatomically, it fits between the scapula and the ulna, and consists of the following three sections:

Muscle insertions and origins

  • The deltoid inserts on the deltoid tuberosity of the humerus and has several actions including abduction, extension, and rotation

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.

Popular culture

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.
The humerus is also notable because it is the longest bone in the human arm (the femur is the longest bone in the human body).
In an episode of the television series CSI ("To Halve and To Hold"), the skeletal humerus is used to determine a man's original height by multiplying the length of his humerus by five.
Leaning on both the medical and "funny bone" definitions, a Hollywood design firm took the name Humerus LLC and released a series of Zombie related products, and features an x-ray of the humerus bone in their logo.

Additional images

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:Gray413_color.png|Cross-section through the middle of upper arm.
humerus in Arabic: عظم عضد
humerus in Bengali: প্রগণ্ডাস্থি
humerus in Catalan: Húmer
humerus in Czech: Pažní kost
humerus in Danish: Humerus
humerus in German: Oberarmknochen
humerus in Dhivehi: މުލައްދަނޑި ކަށިގަނޑު
humerus in Spanish: Húmero
humerus in Esperanto: Humero
humerus in French: Humérus
humerus in Indonesian: Tulang lengan atas
humerus in Italian: Omero (anatomia)
humerus in Hebrew: עצם הזרוע
humerus in Latin: Humerus
humerus in Lithuanian: Žastikaulis
humerus in Hungarian: Felkarcsont
humerus in Dutch: Opperarmbeen
humerus in Japanese: 上腕骨
humerus in Norwegian: Humerus
humerus in Polish: Kość ramienna
humerus in Portuguese: Úmero
humerus in Slovak: Ramenná kosť
humerus in Slovenian: Nadlahtnica
humerus in Finnish: Olkaluu
humerus in Swedish: Överarmsben
humerus in Telugu: భుజాస్థి
humerus in Thai: กระดูกต้นแขน
humerus in Turkish: Humerus
humerus in Ukrainian: Плечова кістка
humerus in Chinese: 肱骨
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