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3 Νοε 2023 · Muscles of the arm and shoulder Explore study unit. Pectoralis major. The pectoralis major muscle covers the anterior thoracic cage. It has three heads; clavicular, sternocostal and abdominal. Its clavicular head originates from the anterior surface of the medial half of the clavicle.
27 Ιαν 2021 · Protraction involves the moving of the scapulae forward (anteriorly) and toward the side of the body (laterally), in an anterolateral movement. Retraction involves the moving of the scapulae...
6 Σεπ 2021 · Are there any differences between the male and female scapula? Ans. According to a research done on Europeans with Hispanic descent, it was found that female scapula is shorter than its male counterpart.
The healthy movement of the scapula along the thorax during arm elevation includes protraction, posterior tilting, and lateral rotation, depending on the plane of movement (Figure 1).
Scapular movements include elevation, depression, adduction, and abduction. The scapula also rotates through upward and downward rotation, internal and external rotation, and anterior and posterior tilt. Scapular elevation: 40 degrees. Scapular depression: 10 degrees. Scapular protraction: 20 degrees. Scapular retraction: 15 degrees.
18 Ιουλ 2024 · What's the main difference between protraction and retraction? Protraction spreads the shoulder blades out from the spine, whereas retraction draws them in toward the spine. Protraction involves the serratus anterior, whereas retraction engages the rhomboids and mid-traps.
30 Οκτ 2023 · Protraction of the scapula: By moving the scapula laterally away from the spine, the shoulders are moved anteriorly and inwards. Retraction of scapula: This movement pulls the scapula medially towards the spine and moves the shoulders backwards and inwards.
