Biology › Nervous coordination, receptors, muscles and behaviour

Nervous coordination, receptors, muscles and behaviour

Canonical unit B14

• Receptors: turning a stimulus into something a neurone can carry
  The sequence from stimulus to response, the spinal reflex arc and the three neurones in it, receptors as transducers, th…
• The action potential: the same size, however hard you push
  The resting potential and how the sodium-potassium pump and differential permeability establish it, depolarisation, repo…
• The synapse: a gap that makes the whole system one-way
  The structure of a cholinergic synapse, the sequence from arriving impulse through calcium influx, vesicle fusion, diffu…
• Sliding filaments: shortening a muscle without shortening anything
  Skeletal muscle structure from muscle to myofibril to sarcomere, the sliding filament mechanism with the roles of calciu…