scapulohumeral reflex(redirected from scapuloperiosteal reflex)
contraction of muscles of the shoulder girdle and arm caused by tapping the lower part of the unilateral border of the scapula; the muscles that respond vary according to their degree of stretching at the time.
Synonym(s): scapuloperiosteal reflex
a normal response to tapping the vertebral border of the scapula, resulting in adduction of the arm. Absence of the reflex may indicate a lesion in the region of the fifth cervical segment of the spinal cord.
A reflex in which the upper arm is adducted and rotated outward when the vertebral border of the scapula is percussed.
See also: reflex