Summary
Summary WJEC Muscular system
- Institution
- WJEC
A detailed summary of the muscular system proportion of the WJEC physical education
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Types of muscle;Muscle system
deltoid trapezius
• Skeletal
• Smooth pectorals
• Cardiac biceps
Functions of skeletal muscle latissimus
• Attached to bones triceps
• Moves under conscious control
• Receives signals from brain in the nervous system gluteal
What are the muscle pairings; quadriceps
gluteasmaximus
1. Hamstring and quadriceps
2. Tibalis anterior and soleus/gastrocnemius
hamstring
3. Trapezius and pectoralis major tibialisanterio
gastrocnemius
4. Biceps and triceps
5. Erector spinae and recuts abdominus soleus
6. Gluteus maximus and psosa major
Fixator - muscle located around the joint at the more stable end of the agonist muscle tension
Agonist - primer movers
Antagonist - realaxes and coordinates
Isometric - static strength : handstand
Isotonic - contacting muscle
Concentric - shorts and fat muscle
Eccentric - long and thin muscle
Slow oxidative; marathon
Structural
• Small bre sized, high mitochondria density, high capillary density, low pc stores, high myoglobin
content, low glycogen stores and High triglyceride stores
Functional
1. More resistant to fatigue as speed on contraction is slow
2. Aerobic exercise (o2 to use little tension)
3. Higher percentage of slow twitch muscle bres
Red due to more myoglobin and mitochondria
Fast oxidative glycolytic; 1500m (2a)
• Large bre size, low mitochondria density, moderate no. of capillaries, moderate myoglobin, high pc
stores, high glycogen stores, moderate triglyceride stores
Functional
1. more resistant to fats than 2b
2. 200m and 800m runs
3. Generate less force against attraction
Fast glycolytic ; 100m (2b)
• Large bre size, low mitochondria density, small no. of capillaries, low myoglobin, high pc stores,
high glycogen stores, low triglyceride stores
Functional
1. Very poor resistance to fatigue
2. Generate less force against attraction
3. Greatest aerobic capacity
4. Sprinter/shot put
5. Fast twitch bres
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