Types of Muscle Fibres - and Recruitment of Fibres Flashcards
What is the full name for Type 1
Muscle Fibre?
Slow Oxidative
What is the full name for Type 2a
Muscle Fibre?
Fast Oxidative Glycolytic
What is the full name for Type 2b
Muscle Fibre?
Fast Glycolytic
An elite distance runner is likely to
have a high proportion of which
muscle fibre type?
Type 1 Slow Oxidative
An elite javelin thrower is likely to
have a high proportion of which
muscle fibre type?
Type 2b Fast Glycolytic
An elite 800m runner is likely to have
a high proportion of which muscle
fibre type?
Type 2a Fast Oxidative Glycolytic
Give 2 functional characteristics of
Type 1 Slow Oxidative Muscle Fibres
- -Fatigue resistant
- Work aerobically
- Produce small amount of force
- Fast recovery rate
Give 2 functional characteristics of
Type 2b Fast Glycolytic Muscle Fibres
- Fatigue quickly
- Contract with speed
- Produce large amount of force
- Slow recovery rate
- Work anaerobically
From where in the motor unit is
the nerve impulse generated?
Motor neuron
What is the ‘wire’ called that
transmits the nerve impulse to the
muscle fibres?
Axon
What is the name for the gap
between the motor end plate and
the muscle fibre?
Synaptic cleft
What is the name of the neurotransmitter
that secretes into the synaptic cleft prior to
contraction of muscle fibres?
Acetylcholine
