Ulnar Nerve Syndrome

Palmar trunk syndrome - manifested on the wrist **decline in reflex contractions of the thumb and thumb muscle,** **occurs when the median nerve is compressed in the carpal tunnel (Solomon's canal).** This syndrome is much less common than other similar syndromes that develop during compression palmar trunks of large branches of the ulnar, median or radial nerves **This syndrome, named after the English surgeon, anatomist and embryologist Henry Short Locker - “Locker syndrome” or “Lattey syndrome”, is characterized by numbness of the surface tissues of the hand from the second interphalangeal joint to the distal phalanx of the large finger (thumb)** In Lattey syndrome, a vascular response may develop with severe arterial or venous spasm as a result of decreased blood flow to the limb. The vascular response may be reflexive (usually a spasm), compensatory, contractile due to negative arteriovenous pressure, or due to impairment of direct active control of vascular tone.