Patellar reflex Guide, Meaning , Facts, Information and Description

This reflex employs only two neurons. Striking the patellar ligament just below the patella stretches the quadriceps tendon. This stimulates sensory receptors that trigger an impulse in a sensory neuron that leads to the lumbar region of the spinal cord. There, the sensory neuron synapses directly with a motor neuron that conducts the impulse to the quadriceps, triggering contraction. This reflex helps maintain the upright posture.

See also

• Reflex

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