The Importance of Vestibular Stimulation in Infants

One study offers particularly provocative evidence of the benefits of vestibular stimulation. These researchers exposed babies, who ranged in age from three to thirteen months, to sixteen sessions of chair spinning: Four times a week for four weeks, the infants were seated on a researcher's lap and spun around ten times in a swivel chair, each spin followed by an abrupt stop. To maximize stimulation of each of the three semicircular canals, the spinning included one or two rotations in each d...

 The laryngeal nerve's haphazard course through the body

A favourite example, ever since it was pointed out to me by Professor J. D. Currey when he tutored me as an undergraduate, is the recurrent laryngeal nerve.* It is a branch of one of the cranial nerves, those nerves that lead directly from the brain rather than from the spinal cord. One of the cranial nerves, the vagus (the name means 'wandering' and it is apt), has various branches, two of which go to the heart, and two on each side to the larynx (voice box in mammals). On each side of the n...