Spinal Reflexes and Proprioception Flashcards Preview

BMS1052 Human Neurobiology > Spinal Reflexes and Proprioception > Flashcards

Flashcards in Spinal Reflexes and Proprioception Deck (3):
1

What is the topographical organisation of motor neurons?

Proximal limb muscles- medial in spinal cord
Distal limb muscles- lateral
Control of extensors- ventral
Control of flexors- proximal

2

What is the difference between intrafusal and extrafusal muscle fibres?

Intrafusal muscle fibres are inside muscle spindles and are responsible for changing spindle length and therefore, sensitivity.
Extrafusal muscles are responsible for force generation.

3

True or false? The tendon reflex (myotatic reflex) involves the use of the Golgi tendon organ,

False, it involves the use of motor spindle fibres.