Muscle sensors and reflex

If the stretch reflex is exaggerated what is this indicative of? What if it is supressed or absent?

What neurotransmitter is involved with renshaw cells?

What is the role of the golgi tendon reflex?

what is the difference between a motosynaptic and a polysynaptic reflex?

Describe the knee jerk reflex

Describe the withdrawal reflex

What is recipricol innervation?

How do we gain awareness of the withdrawal reflex?

What is the purpose of the crossed extensor reflex?

Describe what happens in the crossed extensor reflex?

How is the extensor on the opposite side to the pain innervated in the crossed extensor reflex?

Describe how gamma motor neurons maintain muscle spindle sensitivity?

Why are muscle spindles called intrafusal and non-contractile?

What innervates the muscle spindles?

What is the role of gamma motor neurones?

Where do gamma motorneurones origionate and what do they control?

What are the non contractile centres of muscle spinde cells innervated by and what do they do?

Describe the stretch reflex

How does the brain percieve that the muscle has been stretched?

What is the role of descending neurons within the spinal cord?

What are renshaw cells?

What are muscle spindles and where are they?

What are golgi tendon organs and where are they?

What innervated golgi tendon organs?

Where are golgi tendon organs located?

Describe the structure of golgi tendon organs

When are golgi tendon organs stimulated?

What happens when the golgi is distorted during contraction?

How long are muscle fibres?

What are the two types of muscle spindles?

Describe chain fibres

Describe bag fibres