Triceps brachii muscle

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Template:Muscle infobox


The triceps brachii muscle is often simply called the triceps (both singular and plural). However, the term triceps (Latin for "three-headed") can mean any skeletal muscle having three origins.

Origin and insertion

The three heads have the following names and insertions:

The fibres converge to a single tendon to insert onto the olecranon process of the ulna. The triceps is an extensor muscle, unlike the biceps, which is a flexor muscle. Many mammals have a fourth head, the "Accessory head", which is between the Lateral and Medial heads.

Exercises that build the triceps

The triceps accounts for approximately 70 percent of the upper arm's muscle mass, but people who exercise the arms with weights often neglect this group of muscles in favor of the biceps brachii.






Additional images


  • Madsen M, Marx R, Millett P, Rodeo S, Sperling J, Warren R (2006). "Surgical anatomy of the triceps brachii tendon: anatomical study and clinical correlation". Am J Sports Med. 34 (11): 1839–43. PMID 16735585.

External links

Template:Muscles of upper limb

ca:Tríceps braquial cs:Trojhlavý sval pažní de:Triceps brachii id:Otot triceps brachii it:Tricipite brachiale he:שריר הזרוע התלת ראשי nl:Musculus triceps brachii fi:Ojentaja sv:Triceps brachii

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