Nervous system test

Question 1

What is the role of the nervous system?

Accepted Answer

Communication control centre

Answer

Deliver oxygen to the working muscles

Answer

Provide structure to the body

Answer

Supply energy for the body to work

Question 2

The nervous system activates muscle fibres for contraction to occur

Answer

true

Question 3

Referring to the sliding filament theory, what do the 'Z-lines' represent?

Accepted Answer

Sarcomere

Answer

Myosin filaments

Answer

Actin filaments

Answer

Individual muscle fibres

Question 4

In the sliding filament theory, actin binds onto myosin to 'grab and pull' the perform a concentric muscle contraction

Answer

true

Question 5

Referring to the sliding filament theory, myosin binds to actin to perform muscle contractions both eccentrically, concentrically and isometrically

Answer

true

Question 6

A motor unit is made up of a single motor neuron and further branches of neurons

Answer

true

Question 7

The all or nothing law refers to the activation of an entire muscle

Answer

true

Question 8

Select all that apply to the following question: What are the neurological adaptations to resistance training?

Accepted Answer

Improved motor recruitment

Accepted Answer

Increased ability to achieve stronger muscle contractions

Accepted Answer

Improved recruitment of fast twitch fibres

Answer

Hypertrophy

Question 9

Select all that apply to the following question: What are the neurological adaptations to resistance training?

Accepted Answer

Increased frequency of nerve impulses to motor units

Accepted Answer

Improved inter-muscular co-ordination

Accepted Answer

Automatic performance of movement patterns

Answer

Atrophy

Question 10

When a signal is sent through the motor unit that breaches the stimulation threshold, only some of the attached muscle fibres are activated

Answer

true

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