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The patellar reflex, also called the knee reflex or knee-jerk, is a stretch reflex which tests the L2, L3, and L4 segments of the spinal cord. Many animals, most significantly humans, have been seen to have the patellar reflex, including dogs, cats, horses, and other mammalian species.
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reflex patellar muscle tendon motor contraction spinal cord quadriceps neuron leg test nervous system knee-jerk l4 also may knee stretch
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Patellar reflex | is a | clinical and classic example of the monosynaptic reflex arc | 0.90 | text |
| this can be found in upper motor neuron lesions | instance of | deep tendon reflexes | 0.80 | text |
| hyperthyroidism | instance of | deep tendon reflexes | 0.80 | text |
| anxiety or nervousness | instance of | deep tendon reflexes | 0.80 | text |
| Patellar reflex | related to Clinical significance | After | 0.60 | section |
| Patellar reflex | related to Clinical significance | The | 0.60 | section |
| Patellar reflex | related to Clinical significance | Westphal's | 0.60 | section |
| Patellar reflex | related to Clinical significance | This | 0.60 | section |
| Patellar reflex | related to Clinical significance | On | 0.60 | section |
| Patellar reflex | related to Clinical significance | Exaggerated | 0.60 | section |
| Patellar reflex | related to Clinical significance | L2 | 0.60 | section |
| Patellar reflex | related to Clinical significance | L4 | 0.60 | section |
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