Protraction

From Wikipedia, the free encyclopedia

Protraction is the anatomical term of motion for anterior movement of the arms at the shoulders.

It is the opposite of retraction.

The major muscles involved include: ^[1][2]

• Serratus anterior muscle
• Pectoralis minor muscle

[edit] References

1. ^ Anatomy at Dartmouth shoulder/surface/scsurface3
2. ^ Animation at exrx.net

[edit] External links

• Protraction at eMedicine Dictionary

v • d • e Joints Types fibrous: Gomphosis - Suture - Syndesmosis cartilaginous: Synchondrosis - Symphysis synovial: Plane joint - 1° (Hinge joint, Pivot joint) - 2° (Condyloid joint, Saddle joint) - 3° (Ball and socket joint) by range of motion: Synarthrosis - Amphiarthrosis - Diarthrosis Terminology Kinesiology - Anatomical terms of motion - Agonist/Antagonist Motions general: Flexion/Extension - Adduction/Abduction - Internal rotation/External rotation - Elevation/Depression specialized/upper limbs: Protraction/Retraction - Supination/Pronation specialized/lower limbs: Plantarflexion/Dorsiflexion - Eversion/Inversion Components Articular capsule (Synovial membrane, Fibrous membrane) - Synovial fluid - Bursa - Articular disk