Posterior compartment of the arm

From Wikipedia, the free encyclopedia

Posterior compartment of the arm
Cross-section through the middle of upper arm.
Artery profunda brachii
Nerve muscular branches of the radial nerve

The posterior compartment of the arm contains muscles which are all supplied by the radial nerve. This compartment is also known as the "extensor compartment", extension being its main action.

The muscles of this compartment are the triceps brachii and anconeus muscle.

  • The triceps brachii is a large muscle containing three heads (lateral, medial, and middle).
  • The anconeus is a small muscle stabilizes the elbow joint during movements. Some embryologists consider it as the fourth head of the triceps brachii. As the upper and lower limbs have similar embryological origins and the lower limb contains the quadriceps femoris muscle (the lower limb equivalent of the triceps), which has four heads, this would seem to make sense.


v • d • e
General anatomy of upper limbs
Arm:

Clavipectoral triangle - Quadrangular space - Triangular space - Triangular interval - Axilla - Axillary sheath - Anterior axillary fold - Brachial fascia - Pectoral fascia - Axillary fascia - Fascial compartments of arm (Anterior, Posterior) - Lateral intermuscular septum - Medial intermuscular septum - Bicipital aponeurosis

Forearm: Cubital fossa - Interosseous membrane of the forearm - Posterior compartment of the forearm - Anterior compartment of the forearm - Antebrachial fascia - Carpal tunnel - Common extensor tendon - Common flexor tendon

Hand: Palmar aponeurosis - Finger - Extensor retinaculum of the hand - Flexor retinaculum of the hand - Anatomical snuff box - Extensor expansion
 This anatomy article is a stub. You can help Wikipedia by expanding it.
Retrieved from "http://en.wikipedia.org../../../p/o/s/Posterior_compartment_of_the_arm.html"
Advanced Search
Included Web Search Engines


Safe Search

close

Top Matching Results

Occasionally Search.com will highlight specialized results that are based on the context of your query. Examples of specialized results include specific links to news, images, or video.

Top Matching Results may highlight information from other Search.com pages, content from the CNET Network of sites, or third party content. The listings are based purely on relevance. Search.com does not receive payment for listings in this section but our partners that provide this data may get paid for listing these products.

Sponsored Links

This section contains paid listings which have been purchased by companies that want to have their sites appear for specific search terms and related content. These listings are administered, sorted and maintained by a third party and are not endorsed by Search.com.

Search Results

Search.com sends your search query to several search engines at one time and integrates the results into one list which has been sorted by relevance using Search.com's proprietary algorithm. You can customize the list of search engines included in your metasearch from the preferences.

The search engines that are used in your metasearch may allow companies to pay to have their Web sites included within the results. To view the Paid Inclusion policy for a specific search engine, please visit their Web site. Search.com does not accept payment or share revenue with any search engine partner for listings in this section.