Muscular Pt.2 Shoulder Muscles Flashcards
1
Q
The muscles acting on the “shoulder” is AKA?
A
The Pectoral Girdle
2
Q
Muscles that act on the pectoral girdle originate from the?
A
Axial skeleton & INSERT on the clavical or scapula
3
Q
Pectoralis Minor:
A
anterior thorax, deep to pec. major
Action: Protraxion of scapula away from spine
4
Q
Serratus Anterior:
A
Shape: Saw tooth edge, serrated
Location: superficial antero-lateral thorax
Action: Protraction of scapula away from spine
5
Q
Trapezius:
A
Shape: Trapezoidal
Location: Superior/ posterior thorax
Action: stabilize scapula, upwardly rotate scapula w/ other muscles
6
Q
Levator Scapulae:
A
Location: Deep to trapezius
Action: elevates the scapula
7
Q
Rhomboids:
A
Shape: Rhombus
Location: deep to trapezius, inferior to levator scapula
Action: Retracts the scapula, toward spine
