Frontalis
Primary Actions: Raises eyebrows
Orbicularis Oris
Primary Actions: Closes and protrudes lip
Temporalis
Primary Actions: Closes jaw
Synergists: Masseter
Masseter
Primary Actions: Closes jaw
Synergists: Temporalis
Sternocleidomastoid
Primary Actions: Flexes neck; rotates head
Antagonists: Trapezius
Pectoralis major
Primary Actions: Adducts and flexes humerus
Synergists: Latissimus Dorsi
Antagonists: Deltoid
Rectus abdominis
Primary Action: Flexes vertebral column
Synergists: External oblique
Antagonists: Erector Spinae
External oblique
Primary Action: Flexes and rotates vertebral column
Synergists: Rectus Abdominis
Antagonists: Erector Spinae
Biceps brachii
Primary Action: Flexes elbow and supinates forearm
Antagonists: Triceps
Deltoid
Primary Action: Abducts arm/humerus
Antagonists: Pectoralis major, Latissimus Dorsi
Erector spinae
Primary Action: Extends back
Antagonists: Rectus abdominus, External oblique
Triceps brachii
Primary Action: Extends Elbow
Antagonists: Biceps
Trapezius
Primary Action: Extends neck and adducts scapula
Antagonists: Sternocleidomastoid
Latissimus Dorsi
Primary Action: Extends and adducts humerus
Synergists: Pectoralis major
Antagonists: Deltoid
Iliospoas
Primary Action: Flexes hip
Synergists: something
Antagonists: Gluteus Maximus
Adductors
Primary Action: Adducts thigh
Antagonists: Gluteus Medius
Quadriceps Group: Vasti/ Femur
Primary Action: Extends the knee
Synergists: Quads
Antagonists: Hamstrings
Quadriceps Group: Rectus femoris/pelvis
Primary Action: Extends the knee and flexes hip on thigh
Synergists: Quads
Antagonists: Hamstrings
Tibialis Anterior
Primary Action: Dorsiflexes and inverts foot
Antagonists: Fibularis
Fibularis
Primary Action: Plantar flex and evert foot
Antagonists: Gatrocnemius, Tibialis Anterior
Flexor Carpi Radialis
Primary Action: Flexes wrist and abducts hand
Antagonists: Flexor Carpi Ulnaris
Flexor Carpi Ulnaris
Primary Action: Flexes wrist and adducts hand
Antagonists: Flexor Carpi Radialis
Extensor Carpi Radialis
Primary Action: Extends wrist and abducts hand
Synergists: Flexor Carpi Radialis
Antagonists: Flexor Carpi Ulnaris
Gluteus Maximus
Primary Action: Extends hip
Synergists: Hamstring
Antagonists: Iliopsoas
Gluteus Medius
Primary Action: Abducts thigh
Antagonists: Adductors
Hamstring group
Primary Action: Flex knee and extend hip
Antagonists: Quads
Gastrocnemius
Primary Action: Plantar flexes foot and flexes knee
Synergists:
Antagonists: Quads and Tibialis anterior