Category: S

A reflex induced by stimulation on of somatic sensory nerve endings.  

A sneeze that occurs following exposure to bright sunlight. This benign condition may affect a great number of normal people, and it may also be associated with rhinitis. The mechanism of the cause of this type of sneeze reflex is unknown.  

A reflex in which only two or possibly three neurons are interposed between receptor and effector organs.  

A reflex involving one or a few segments of spinal cord.  

A reflex concerned with sexual activities, especially erection and ejaculation, which results from direct genital stimulation or indirectly from emotion, whether the individual is asleep or awake.  

A reflex in which afferent impulses enter the cord in the same segment or segments from which the efferent impulses emerge.  

Slow vermicular contraction of the scrotal muscle when the perineum is stroked or cold is applied.  

A reflex in which the upper arm is adducted and rotated outward when the vertebral border of the scapula is percussed.  

Muscular contraction following percussion or stimulus between the scapulae.  

A rehabilitation regimen used after sensation is impaired by peripheral nerve injuries or surgery to the hand. The purpose is to relearn the interpretation of sensory information related to pain, temperature, and object identification.