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Muscular System (Muscle Tissues (Skeletal (Voluntary, Striated,…

- - - - Frontalis
        
        Raises eyebrows
      - Orbicularis Oris
        
        Closes and protrudes jaw
      - Orbicularis Oculi
        
        Blinks and closes eyes
      - Temporalis
        
        Closes Jaw
      - Zygomaticus
        
        Raises corner of mouth
      - Masseter
        
        Closes Jaw
      - Buccinator
        
        Compresses cheek
      - Sternocleidomastoid
        
        Flexes neck and rotates head
      - Platysma
        
        Pulls corner of mouth inferiorly
    - - Pectoralis Major
        
        Adducts and flexes humerus
      - Rectus Abdominis
        
        Flexes vertebral column
      - External Oblique
        
        Flexes and rotates vertebral column
    - - Biceps Brachii
        
        Flexes elbow and supinates forearm
      - Deltoid
        
        Abducts arm
    - - Iliopsoas
        
        Flexes hip
      - Adductor Muscles
        
        Adduct thigh
      - Sartorius
        
        Flexes thigh on hip
      - Quadriceps group
        
        Vastus medialis
        
        Extends knee
        
        Inter-medius
        
        Extends knee
        
        Lateralis
        
        Extends knee
        
        Rectus femoris
        
        Extends knee
        
        Flexes hip on thigh
      - Tibialis anterior
        
        Dorsiflexes and inverts foot
      - Extensor, digitorum longus
        
        Extends toes and dorsi-flexes foot
      - Fibularis muscles
        
        Plantar flex and evert foots
  - - - Trapezius
        
        Extends neck and adducts scapula
      - Latissimus dorsi
        
        Extends and adducts humerus
      - Erector spinae
        
        Extends back
      - Deltoid
        
        Abducts humerus
    - - Triceps brachii
        
        Extends elbow
      - Flexor Carpi radialis
        
        Extends wrists and abducts hand
      - Flexor Carpi ulnaris
        
        Flexes wrist and adducts hand
      - Flexor digitorum superficialis
        
        Flexes wrist and fingers
      - Extensor carpi radialis
        
        Flexes wrist and abducts hand
      - Extensor digitorum
        
        Extends fingers and wrist
    - - Gluteus Maximus
        
        Extends hip
      - Gluteus Medius
        
        Abducts thigh
      - Hamstring muscles
        
        Semitendinosus
        
        Flex knee and extend hip
        
        Semimembranosus
        
        Flex knee and extend hip
        
        Biceps femoris
        
        Flex knee and extend hip
      - Gastrocnemius
        
        Plantar flexes foot and flexes knee
      - Soleus
        
        Plantar flexes foot
- - - - Myosin attaches to actin forming actin/myosin crossbridges
        
        Myosin head moves toward M line of sarcomere pulling actin filaments past myosin
        
        Action is repeated as many times as needed by ATP
        
        Z lines get closer together as both actin and myosin filaments slide past each other