triceps brachii

[trahy-seps bray-kee-ahy, bra-kee-ahy]

plural noun

1. triceps, specifically those on the back of the upper arm and in the equivalent anatomical position in certain animals.

Example Sentences

Anatomy.—The triceps brachii is the principal structure which fills the space between the posterior border of the scapula and the humerus.

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The radial nerve supplies branches to the three heads of the triceps brachii, to the common and lateral extensors of the digit and also to the skin covering the forearm.

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A synovial bursa is situated underneath the tendinous attachment of the posterior portion of the triceps brachii—the long head or caput magnum.

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The triceps brachii is the chief antagonist of the biceps brachii.

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However, radial paralysis is encountered following injury to the nerve occasioned by its being stretched, as in cases where the triceps brachii is unduly extended in restraining subjects by means of a casting harness.

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