Den store brystmuskel (Pectoralis Major)

Den store brystmuskel hedder på latin pectoralis major. Musklen laver abducts the arm at the shoulder., og medially rotates the upper arm.. Musklen er en del af armens fremadføring.

Udspring og hæfte for Den store brystmuskel

Udspring: Brystben, kraveben og ribbensbrusk
Hæfte: Øverst foran på overarmsknoglen

Den store brystmuskel

Den store brystmuskel funktion

• Abducts the arm at the shoulder..

  This means that the pectoralis major muscle moves the upper arm away from the vertical midline of the body (i.e. the action of raising your arms to the side).

• Medially rotates the upper arm..

  This means that the pectoralis major muscle rotates the upper arm inward around the axis of the bone (i.e. it rotates the upper arm toward the vertical midline of the body).

Den store brystmuskel