Muscle anatomy

Frontalis

Frontalis

Condenses or wrinkles forhead (facial expressions)

Temporalis

Moving mandibles (lower jaw movement)

Masseter

moving mandibles (chewing)

Occipitalis

Moving scalp back (moving ears)

Sternocleidomastoid

rotation of head

Trapezius

Elevate of Scapula

Deltoid

rotation of arm

Pectoralis Major

influences deltoid, allows humerus movement, keeps arms attached to trunk ( pushing motions )

Serratus anterior

Scapula attached to the trunk Rotation of body (punching motion)

latissimus dorsi

influences deltoid and upper limbs (pulling motions)

Rectus abdominis

Body compression (tucking in for canonball)

External Oblique

Body compression (knee to elbow crunch)

Infraspinatus

Raising of upper limp (jumping jacks)

Rhomboid Major

Scapula retraction (morning yawn stretch)

Biceps Brachii

Bring up forearm (bicep curls)

Triceps Brachii

extending forearm (pushing up out of the pool)

Brachialis

bending elbow

Brachioradialis

rotation of forearm (macarena dance)

Gluteus maximus

Extension of hip (getting out of squat)

Gluteus medius

abduction of hip (crab walking)

quadriceps: Rectus femoris, vastus lateralis, vastus intermedius, vastus medialis

knee extender (dance leg kicks)

sartorius

rotations of hip and femur (crossing legs)

Hamstring: Biceps femoris, semitendinosus, semimembranosus

knee flexion (backwards horse kick)

Gastrocnemius

plantar flexion of the foot, bend outwards (walking on your toes)

Soleus

plantar flexion of the foot, bend outwards (walking on your toes)

Tibialis anterior

dorsiflex the foot, bend inward (walking on your heels)