Muscular System Flashcards
Roles
Movement
Posture
Involuntary muscles
not controlled consciously
Voluntary muscles
controlled voluntary to produce movement
What muscle is our heart
Cardiac muscle
Fast twitch fibre
quick and powerful contraction - sprint
Slow twitch fibre
slow and less powerful contraction - swimming
How many major muscle groups
11
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Deltoid, Trapezius, Latissimus Dorsi, Quadriceps, Gastrocnemius, Pectorals, Abdominals, Gluteals, Triceps, Biceps, Hamstring
Isometric contraction + example
Muscle contraction no movement - rugby scrum
Isotonic contraction + example
Muscle contraction with movement - running
Flexion
decrease angle at moving joint
Extension
increase angle at moving joint
Abduction
taking body part away from body
Adduction
bringing body part to body
Tendons
holds bone to muscle