QuestionSBA
QuestionChoice
Type 1 fibres are slow-twitch fibres. Slow oxidative fibres contract relatively slowly and use aerobic respiration (oxygen and glucose) to produce ATP. They produce low-power contractions over long periods and are slow to fatigue.
10001653
b
Type 1 fibres
QuestionChoice
A type 1a sensory fibre, otherwise known as a primary afferent fibre, is a type of afferent nerve fibre. It is the sensory fibre of a stretch receptor called the muscle spindle found in muscles, which constantly monitors the rate at which a muscle stretch changes.
10001655
d
Type 1a fibres
QuestionChoice
Type 2b fibres are fast-twitch glycolytic fibres. Type 2b (FG) fibres primarily use anaerobic glycolysis as their ATP source. They have a large diameter and possess high amounts of glycogen, which is used in glycolysis to generate ATP quickly to produce high levels of tension.
10001652
a
Type 2b fibres
QuestionChoice
There is no type 3 muscle or sensory fibre.
10001656
e
Type 3 fibres
QuestionChoice
Type 2a fibres are fast-twitch oxidative fibres. Fast oxidative fibres have fast contractions and primarily use aerobic respiration, but because they may switch to anaerobic respiration (glycolysis), can fatigue more quickly than Type 1 fibres.
10001654
c
Type 2a fibres
Concept
Chapter
2693
3804
Muscle physiology
Topic
164
Physiology and pathology of bone
12877
You are participating in a 100m sprint race to raise money for your ward.

What nerve fibres will be used for this race?
a