Trunk 1 Flashcards
1
Q
Pectoralis major
A
Prime mover of arm flexion. Medially rotates and adducts arm.
2
Q
Pectoralis minor
A
With ribs flexed, draws scapula forward and downward.
3
Q
Serratus anterior
A
Rotates scapula so that its inferior angle moves upwards and laterally.
4
Q
Intercostals: inner
A
Draws ribs together, depressing the rib cage.
5
Q
Intercostals: external
A
Pulls ribs together, elevating the rib cage
6
Q
External/internal oblique
A
Flex the vertebral column and compress abdominal wall. Also aid back muscles in rotating and flexing laterally.
7
Q
Transversus abdominis
A
Compress abdominal contents
8
Q
Rectus abdominis
A
Flexes and rotates the lumbar region of the vertebral column.
9
Q
Subcapularis
A
Chief medial rotator of humerus.
10
Q
Trapezius
A
Stabilizes, rotates, raises, and retracts scapula.
