Building Clay Muscles Origins & Insertions

Close eyes, blink, wink

Closes mouth, grinds, jaw sideways

Mastication, chewing – strongest muscles in our body

Flex elbow, flex shoulder, turn a key

Extends elbow, antagonist of biceps

Side lifting humerus Injection site

Pull shoulder blades together, Stabilize scapula, Antagonist to trapezius

Pectoralis major: Flexes, adducts, & rotates humerus

Sternocleidomastoid Originates Sternum Clavicle Inserts Mastoid process of temporal bone Function Rotate head Flex neck Extend neck

Trapezius Scapula toward spine Rotate scapula Scapula up or down Head and neck To back or side Assists breathing

Arm extension, adduction, medial rotation

Quadriceps (see next slides for detail) -extends knee, flexes hip Rectus femoris Vastus medius Vastus intermedius Vastus lateralis

Hamstring – (see next slides for detail) flex knee, extend thigh, posture Semimenbranosus Semitendinosus Biceps femoris

Plantar flexion Flex knee Propulsion stabilization

Gluteus (see next slides for detail) Gluteus minimus Gluteus medias Gluteus maximus

abduct thigh, rotate thigh, stabilization

Extends thigh Mobilization Posture injections

Abdominal muscles (see next slides for detail) – movement, support, protection, breathing Transverse Abdominal Exernal Obliques Internal Obliques and Rectus Abdominal