1c Motor 1&2 Inverse Myotactic Reflex

Question 1

What afferent fiber is the afferent for the Golgi Tendon Organ?

Answer 1

1b

Question 2

How does the afferent fiber of the Golgi Tendon Organ line up to the muscle causing stimulus?

Answer 2

1b is in series with stimulating muscle

Question 3

What does the Golgi Tendon Organ detect?

Answer 3

muscle tension

Question 4

How is the inverse myotactic reflex a bisynaptic inhibition system?

Answer 4

stretch muscle spindle –> contract muscle, which causes pulling of tendon and squeezing of Golgi tendon organ –> Golgi tendon organ activates inhibitory Interneuron (which synapses with alpha motor neuron) to inhibit synergistic muscle fibers and stimulate antagonistic muscle fibers

Question 5

What type of reflex occurs when a muscle acts on a load?

Answer 5

inverse myotactic reflex (contraction)

Question 6

What type of reflex occurs when a load acts on a muscle?

Answer 6

myotactic reflex (stretching)