Jaw reflexes elicited by electrical stimulation of the hard palate of the rat

Reflex responses of the oral musculature to electrical stimulation of sensory elements in the hard palate were studied in decerebrate rats

J. Weijs-Boot

2004

Scholarcy highlights

  • Reflex responses of the oral musculature to electrical stimulation of sensory elements in the hard palate were studied in decerebrate rats
  • Stimulation of the intermolar region evoked:- at threshold stimulation, two bursts of activity in the intrinsic tongue muscles and reactions in the jaw-closing muscles resulting in a long-lasting jaw closure; with stimuli about 1.2–1.5 × threshold, a gradual shift from the reactions at threshold to a suprahyoid muscle and jaw-closing muscle response of short latency, causing fast transient jaw opening followed by prolonged jaw closing; with stimuli about 1.5–3 × threshold, only short latency suprahyoid and jaw-closing muscle reactions
  • At stimulus intervals up to 200 ms a second stimulus did not produce a second response of the jaw-closing muscles

Need more features? Save interactive summary cards to your Scholarcy Library.