Erb's at'rophy

[Wilhelm He in rich Erb, German physician, *r840.] Progre ive muscular dystrophy.* E.'s disease', bulbar paralysis. E.'s ju'venile type, progre ive muscular dystrophy of childhood, beginning in the scapulo-humeral region. E.'s pal'sy or paral'ysis, paralysis of the muscles of the upper arm (deltoid, biceps, brachial is anterior, etc.), due to a lesion of the brachial plexus or of the roots of the fifth and sixth cervical nerves. E.'s point, a point on the side of the neck where pre ure can be made on the brachial plexus, giving rise to E. 's paralysis. E.'s sign, (i) increased electric excitability of the muscles to the galvanic current, and frequently to the faradic, in tetany; (2) Westphal's sign, abolition of the patellar reflex in tabes. E.' pi'nal paral'ysis, chronic myelitis of syphilitic origin.