Jaw Reflexes Flashcards
What are some examples of a reflex
Pupillary reflex
Jaw jerk reflex
Knee reflex
What is the reflex pathway
Stimulus –> response –> afferent neurone from Periphery to CNS –> synapse –> efferent neurone from CNS to periphery –> effector –> response
What are stretch reflexes
Simple
Mono-synaptic
Knee or jaw jerk reflexes
What is the reflex latecy
Time from the stimulus to effect
What is the role of the jaw jerk reflexes
Resist gravity
Maintain posture
Stabilise jaw during vigour movement of the head
Why is the spa jaw jerk test
To clinically test the integrity of the trigeminal nerve
What are protective reflexes
Poly synaptic
Response to noxious stimulus
What is the stumuli for jaw opening reflexes
Intra-oral mechanical or noxious
Extra oral noxious
What are the receptors of the jaw opening reflex
Mechanoreceptors
Noicoreceptors
What are the responses to the jaw opening reflexes
Inactivation of jaw closers
Inhibitory jaw reflexes
What is a reflex
Predictable response to a given stumulus which is rapid and under autonomic control
