What is the role of the nervous system?
Deliver oxygen to the working muscles
Provide structure to the body
Communication control centre
Supply energy for the body to work
The nervous system activates muscle fibres for contraction to occur
Referring to the sliding filament theory, what do the 'Z-lines' represent?
Myosin filaments
Actin filaments
Sarcomere
Individual muscle fibres
In the sliding filament theory, actin binds onto myosin to 'grab and pull' the perform a concentric muscle contraction
Referring to the sliding filament theory, myosin binds to actin to perform muscle contractions both eccentrically, concentrically and isometrically
A motor unit is made up of a single motor neuron and further branches of neurons
The all or nothing law refers to the activation of an entire muscle
Select all that apply to the following question: What are the neurological adaptations to resistance training?
Hypertrophy
Improved motor recruitment
Increased ability to achieve stronger muscle contractions
Improved recruitment of fast twitch fibres
Increased frequency of nerve impulses to motor units
Atrophy
Improved inter-muscular co-ordination
Automatic performance of movement patterns
When a signal is sent through the motor unit that breaches the stimulation threshold, only some of the attached muscle fibres are activated
