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THE MUSCULAR SYSTEM. 1. How do skeletal muscles produce movement? 2. Group movements 3. Review of superficial skeletal muscles – anterior 4. Review of superficial skeletal muscles - posterior. HOW DO SKELETAL MUSCLES PRODUCE MOVEMENT?. Exert force on tendons Tendons cross joint(s)

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Presentation Transcript
slide1

THE MUSCULAR SYSTEM

1. How do skeletal muscles produce movement?

2. Group movements

3. Review of superficial skeletal muscles – anterior

4. Review of superficial skeletal muscles - posterior

slide2

HOW DO SKELETAL MUSCLES

PRODUCE MOVEMENT?

Exert force on tendons

Tendons cross joint(s)

Joints act as the fulcrum of a lever system

Origin versus insertion

Gaster (belly)

coracoid process

bellies of biceps brachii

origins (heads) of biceps brachii

radius

insertion of biceps brachii

slide3

GROUP MOVEMENTS

Prime mover (agonist)

Antagonist

Synergist(s)

Fixator(s)

FLEXORS

biceps brachii

brachialis

EXTENSORS

triceps brachii

slide4

REVIEW OF SUPERFICIAL SKELETAL MUSCLES

temporalis

masseter

sternocleidomastoid

deltoid

pectoralis major

Serratus anterior

triceps brachii

biceps brachii

external abdominal oblique

rectus abdominis

gluteus medius

sartorius

rectus femoris

gracilis

vastus lateralis

vastus medialis

gastrocnemius

tibialis anterior

slide5

REVIEW OF SUPERFICIAL SKELETAL MUSCLES

masseter

trapezius

deltoid

triceps brachii

latissimus dorsi

external abdominal oblique

gluteus maximus

tensor fascia lata

Semitendinosus (more lateral)

biceps femoris

semimembranosus

gastrocnemius

end