<unk>  is the movement of the navel towards the head on flexing the neck and was named after Charles Edward<unk> , English neurologist (1854–1908). It is caused by weakness of the lower abdominal muscles.<unk>  is characteristic of spinal cord injury at the T10 level. It has also been described in amyotrophic lateral sclerosis and facioscapulohumeral muscular dystrophy.
Beevor's sign
Adson's sign
Hegar's sign
Rigler's sign
Rovsing's sign
Kussmaul's sign
Goodell's sign
Cullen's sign