symptom definitions Flashcards
1
Q
3
clonus
A
- involuntary and rhythmic muscle contractions
- caused by a permanent lesion in descending motor neurons.
- Clonus may be found at the ankle, patella, triceps surae, wrist, jaw, biceps brachii.
2
Q
6
spasticity
A
- a motor disorder characterised by a velocity-dependent increase in tonic stretch reflexes (muscle tone)
- **involuntary activation of muscles **
- co-activation of opposing muscle groups antagonist and agonist
- exaggerated tendon jerks,
- resulting from hyperexcitability of the stretch reflex,
- one component of the upper motor neurone syndrome’
3
Q
2
flaccid paralysis
A
- associated with a LMN lesion
- rapid onset of weakness of an individual’s extremities
4
Q
4
spastic paralysis
A
- tight and hard muscles
- It can cause your muscles to twitch uncontrollably, or spasm.
- muscles in constant contraction
- typically UMN
5
Q
2
tonic
A
- stiffening
- a physiological response which is slow and can be graded
