'Located in the skin & other tissues, pain receptors are the ends of these fiber bundles'
nerves
REALLY HURT: Located in the skin & other tissues, pain receptors are the ends of these fiber bundles
Located in the skin & other tissues, pain receptors are the ends of these fiber bundles
Located in the skin & other tissues, pain receptors are the ends of these fiber bundles
REALLY HURT
nerves
REALLY HURT