The sliding filament model of muscle contraction

• what is a neuromuscular junction?

  specialised synapse between the terminus of a motor neurone and the sarcolemma of the muscle fibre
• what is acetylcholinesterase?

  enzyme that breaks down acetylcholine
• what is a motor end plate?

  the connection of branched motor neurone onto a muscle fibre
• what is a motor unit?

  all the muscle fibres supplied by a single motor neurone
• how does the brain control the force of muscle contraction?

  • strong force needed - larger number of motor units stimulated