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Home > Anatomy & Physiology > Muscles > Triceps Brachii

Triceps Brachii Muscle

The Triceps Brachii also assists Latissimus Dorsi in extending the shoulder joint. It contracts strongly during the up phase of a push up, to straighten the arm.

Origin

  • Long head - Lower part of the glenoid cavity of the scapula
  • Lateral head - Upper half of the posterior surface of the humerus
  • Medial head - Lower 2/3 of the posterior surface of the humerus

Insertion

  • Olecranon process of the ulna

Actions

  • Extension of the elbow

Innervation

  • Radial nerve

Daily uses

  • Pushing a door closed

How can I stretch it?

How can I strengthen it?

Triceps Brachii




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