-
pectoralis major
- flexes shoulder
- adducts and medially rotates arm
- extends shoulder from flexed position
-
pectoralis minor
depresses scapula or elevates ribs
-
serratus anterior
- rotates and protracts scapula
- elevates ribs
-
deltoid
- flexes and extends shoulder
- abducts and medially and laterally rotates arm
-
external intercostal
elevates ribs
-
internal intercostal
depresses ribs
-
diaphragm
- inspiration
- depresses floor of thorax
-
external AND internal abdominal oblique
- flexes and rotates vertebral column
- compresses abdomen
- depresses thorax
-
transversus abdominis
compresses abdomen
-
rectus abdominis
- flexes vertebral column
- compresses abdomen
-
latissimus dorsi
- adducts and medially rotates arm
- extends shoulder
-
levator scapulae
- elevates, retracts, and rotates scapula
- laterally flexes neck
-
trapezius
- elevates, depresses, retracts, rotates, and fixes scapula
- extends neck
-
teres major
- extends shoulder
- adducts and medially rotates arm
-
teres minor AND supraspinatus AND infraspinatus AND subscapularis
- stabalize shoulder
- hold head of humerus in place
-
teres minor
laterally rotates and adducts arm
-
infraspinatus
laterally rotates arm
-
supraspinatus
abducts arm
-
subscapularis
medially rotates arm
-
coracobrachialis
adducts arm and flexes shoulder
-
rhomboideus major AND minor
- retracts, rotates, and fixes scapula
- minor-slightly elevates scapula
-
triceps brachii
- extends elbow
- extends shoulder and adducts arm
-
biceps brachii
- flexes shoulder and elbow
- supinates forearm and hand
-
brachialis and brachioradialis
flexes elbow
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