Methods The size,echo intensity on 2-DUS and blood flow on CDFI in sternocleidomastoid mascle(SCM) masses in 46 infants were examined,measured and analysed.
The vagus nerve receives visceral sensory information from the thorax and abdomen, and the accessory nerve is responsible for innervating the sternocleidomastoid and trapezius muscles, neither of which is exclusively in the head.