Muscle Fibre Types

Question 1

SO fibres - structural

Answer 1

Neuron size - small
Fibres per neuron - few
Capillaries - Many
Glycogen stores - Low
PC stores - low
Mitochondria - many
Myoglobin - many

Question 2

FOG fibres - structural

Answer 2

Neuron size - Large
Fibres per neuron - Many
Capillaries - many
Glycogen stores - High
PC stores - high
Mitochondria - med
Myoglobin - med

Question 3

FG fibres - structural

Answer 3

Neuron size - Large
Fibres per neuron - Many
Capillaries - Few
Glycogen stores - high
PC stores - high
Mitochondria - few
Myoglobin - few

Question 4

SO fibre - functional

Answer 4

Speed of contraction - slow
Force of contraction - low
Fatigue resistance - high
Aerobic capacity - high
Anaerobic capacity - low

Question 5

FOG fibres - functional

Answer 5

Speed of contraction - fast
Force of contraction - high
Fatigue resistance - med
Aerobic capacity - med
Anaerobic capacity - high

Question 6

FG fibres - functional

Answer 6

Speed of contraction - fast
Force of contraction - high
Fatigue resistance - low
Aerobic capacity - low
Anaerobic capacity - high