Medical dictionary. 2011.
clasp-knife rigidity — see spasticity … The new mediacal dictionary
Clasp-knife response — refers to a stretch reflex with a rapid decrease in resistance when attempting to flex a joint, usually during a neurological examination. It is one of the characteristic responses of a upper motor neuron lesion. It gets its name from the… … Wikipedia
clasp-knife effect — see under rigidity … Medical dictionary
clasp-knife phenomenon — see under rigidity … Medical dictionary
clasp-knife reflex — see under rigidity … Medical dictionary
clasp-knife spasticity — see under rigidity … Medical dictionary
rigidity — 1. Stiffness or inflexibility. SYN: rigor (1). 2. In psychiatry and clinical psychology, an aspect of personality characterized by an individual s resistance to change. 3. In neurology, one type of increase in … Medical dictionary
Spasticity — A state of increased tone of a muscle (and an increase in the deep tendon reflexes). For example, with spasticity of the legs (spastic paraplegia) there is an increase in tone of the leg muscles so they feel tight and rigid and the knee jerk… … Medical dictionary
spasticity — n. resistance to the passive movement of a limb that is maximal at the beginning of the movement and gives way as more pressure is applied. Also known as clasp knife rigidity, it is a symptom of damage to the pyramidal system in the brain or… … The new mediacal dictionary
Hypertonia — This article is about increased activity and resistance in muscles. For increased blood pressure, see Hypertension. Hypertonia Classification and external resources ICD 10 P94.1 ICD 9 … Wikipedia
