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Muscular System (MOVEMENT STRUCTURES: (HEAD: (Frontalis- part of the…

- - - - Rectus Abdominis: Flex & rotate lumbar region of vertebral column
        
        Latissimus Dorsi: Prime mover of arm extension, powerful arm adducter, medially rotates arm
        
        Trapezius: Stabilizes, retracts and relapse scapula
        
        External Obliques: Flexes vertebral column and compress abdominal wall
        
        Erector Spinae: prime mover of back extension, provide resistance help, central bending forward at waist
  - - - Deltoid: prime mover of arm abduction when all fibers contract simultaneously
        
        Flexor digitorium superficiali: flexes hand and middle phalange of 2nd, 5th finger
        
        Extensor Digitorium: key muscles of back make wrist & elbow
        
        Tricep Brachil: powerful forearm extension, prime mover of medial head
        
        Flexor Carpi Radialis: Powerful flexor of hand, abduct hand weak synegist, forearm flexion
        
        Extensor Carpi Ulnaris: Powerful flexer & adducter of hand, stabilizes wrist during finger extension
        
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  - - - Obicularsis Oculi- close eyes, produce blinking and squinting , pulls eyebrows
        
        Zygomaticus: Raise lateral corners of mouth, smiling muscle
        
        Buccinator: compress cheek, holds food between teeth while chewing, pulls corner of mouth laterally (whistling & sucking)
        
        Platysma: tenses skin at neck, helps depress mandible, pulls lower lip back & down
    - - Temporalis: close jaw, retracts and elevates mandible, help mandible
        
        Obicularis Oris: encircles mouth, contracts lips & mouth
        
        Masseter: prime mover of jaw, closer, elevates mandible
        
        Sternocleido-mastoid: Muscle flexes neck & helps head during force inspiration while inhaling
  - - - AdductorMuscles: Adduct femur and innervated by abtudeler nerve form medial wall of formal triangle
        
        Gluteus Maximus: Major extension of thigh comlex powerful & most effective when flex & forced laterally rotates and abducts thigh
        
        Tibialis Anterior: Prime mover of dorsiflestion, support medial longitudinal area of foot
        
        Sartorius: move hip joint, knee joint making synergest muscle
        
        Quadracep Group: Essential, Jumps climbs, assist flexation
        
        Hamstring: Prime mover of thigh extensions * leg flexion of thigh
        
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- - - - Criteria used to name muscle include their location, shape, relative size, fiber (fascicle) direction, number of origins, attachment sites (orign/inserton), and action
- - - - to return muscleto their pre-exercise state, ATP must be produce aerobically and used to regenerate creatine phosphate glycogen reserves must be metabolism
        
        Oxygen used to accomplish repayment called excess postexercise oxygen consumplion (EPOC)
        
        Regular aerobic exercise give skeletal muscle increase efficiency ednurance strength and resistance to fatigue
        
        Resistance exercise cause hypertrophy and large gain in strength
        
        immobilizing muscle lead to muscle weakness and severe atrophy