2.2 neuro - reflexes

Question 1

What is a reflex

Answer 1

Type of local processing that occurs in the spinal cord without influence from higher centers

Question 2

What are the main components of a reflex

Answer 2

Receptor, afferent sensory fiber, interneuron in spinal cord (if polysynaptic), efferent motor fiber, effector

Question 3

Describe the flexor / pain reflex

Answer 3

Stimulus, contraction of flexor muscles AND inhibition of antagonist muscles (polysynaptic)

Question 4

Describe the crossed extensor reflex

Answer 4

Most common in weight bearing, flexor reflex and an opposite response on the opposite ride of the body, interneurons send axons to the contralateral ventral horn

Question 5

Describe the tendon reflex

Answer 5

Hitting knee with reflex hammer, monosynaptic