T1 U10 Stretch Reflex

Question 1

Define reflex

Answer 1

Rapid and predictable response to stimulus

Question 2

5 components to stretch reflex

Answer 2

Receptor
Sensory neuron
Integration Neuron
Motor Neuron
Effector

Question 3

3 steps of a stretch reflex

Answer 3

1) muscle stretches and activates muscle spindles
2) Spindles send impulse to spine through Affarent Neuron synapse w/ motor neuron and causes a contraction to resist further stretching
3) Branch of affarent neuron w/ interneurons inhibit motor neuron controlling antagonisic muscle so that it does not resist the shortening

Question 4

Function of Golgi tendon

Answer 4

NB for smooth and termination of contratcions

Question 5

Function of muscle spindle

Answer 5

Sensitive to stretch and senses rate, amount and degree of stretch