What three things is a reflex?
stereotyped
involuntary
rapid
What are the three general functions of reflexes?
protective
postural
homeostasis
What are the 5 neural components of a reflex?
receptor afferents CNS efferents effector
What is involved in a myotatic reflex?
muscle spindle afferent N-Ns synapse in CNS (excitatory NT) efferent muscle contracts
What is invloved in a reverse myotatic reflex?
What is it’s functions?
golgi tendon organ afferent interneurone in CNS excitatory NT then inhibitory NT efferent muscle relaxes Opposite response to muscle spindle, release mechanism, prevents tension ripping off bone
What is involved in the crossed extensor reflex?
What is it’s function?
both inhibition and excitation, also neurone up to brain
lifts one leg up, shifts weight onto other leg