rectus abdomalis
name means "straight muscle of the abdomen
pectoralis major
prime mover for shoulder flexion and adduction
deltoid
prime mover for shoulder abduction
external oblique
part of the abdominal girdle; forms the external lateral walls of the abdomen
sternocleidomastoid
each muscle in this pair turns the head toward the opposite shoulder
internal oblique and transverse abdomis
two muscle pairs that help to form the abdominal girdle
external intercostal
deep muscles of the thorax that promote the inspiratory phase of breathing
diaphragm
unpaired muscle that acts with the other abdominal muscles to accomplish inspiration
trapezius
muscle that allows you to shrug your shoulders or extend your head
deltoid
muscle that adducts the shoulder and causes the extension of the shoulder joint
latissimus dorsi
shoulder muscle that is the antagonist of the deltoid
erector spinae
prime mover of back extension; a deep composite muscle consisting of 3 columns