Definition

DEFINITION

  • Examination of spinal reflexes tests the integrity of the sensory and motor components of the reflex are and the influence of descending motor pathways on the reflex.
  • Three kinds of responses may be seen. Absence or depression of a reflex indicates complete or partial loss of either sensory or motor (LMN) component of the reflex; a normal response indicates that both sensory and motor components are intact; and an exaggerated response indicates an abnormality in the motor pathways (UMN) that normally have an inhibitory influence on the reflex or a deficit of the opposing muscles, if paresis is also present the reflexes are
    • Myotatic (Stretch) reflex : or Quadriceps (Knee Jerk, Patellar) reflex
    • Cranial tibia reflex
    • Gastrocnemius reflex
    • Extensor carpi radialis reflex
    • Triceps reflex
    • Biceps reflex
    • Flexor (pedal, with drawl) reflexes
    • Extensor thrust reflex
    • Perineal (Bulbocavernosus, Anal) reflex
    • Crossed extensor reflex
    • Extensor toe (Babinski- plantar) reflex
Last modified: Sunday, 4 December 2011, 9:52 AM