clasp-knife reflex
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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 rigidity — an exaggerated stretch reflex of skeletal muscles seen in spasticity and decerebrate rigidity, resembling the opening of a penknife or clasp knife; there is increased resistance to the extensors (induced by passive flexion of a joint), which… … Medical dictionary
Stretch reflex — The stretch reflex (myotatic reflex) is a muscle contraction in response to stretching within the muscle. It is a monosynaptic reflex which provides automatic regulation of skeletal muscle length. When a muscle lengthens, the muscle spindle is… … Wikipedia
Golgi tendon organ — Organ of Golgi (neurotendinous spindle) from the human tendo calcaneus. Latin organum sensorium tendinis Gray s … Wikipedia
Golgi tendon organ — n a spindle shaped sensory end organ within a tendon that provides information about muscle tension called also neurotendinous spindle * * * see tendon organ * * * an encapsulated nerve ending found in tendons of mammalian muscles and acting as a … 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
nervous system disease — Introduction any of the diseases or disorders that affect the functioning of the human nervous system (nervous system, human). Everything that humans sense, consider, and effect and all the unlearned reflexes of the body depend on the… … Universalium
reaction — 1. The response of a muscle or other living tissue or organism to a stimulus. 2. The color change effected in litmus and certain other organic pigments by contact with substances such as acids or alkalies; also the property that such substances… … Medical dictionary
Muscle tone — For the use of the term tone in weight training and bodybuilding, see Toning exercises. In physiology, medicine, and anatomy, muscle tone (residual muscle tension or tonus) is the continuous and passive partial contraction of the muscles, or the… … Wikipedia
Internuclear ophthalmoplegia — Classification and external resources Schematic demonstrating right internuclear ophthalmoplegia, caused by injury of the right medial longitudinal fasciculus. ICD 10 … Wikipedia
