Which reflex is assessed by stroking from just below the patella to the foot?

Stroking from just below the patella to the foot assesses the Oppenheim's reflex, which is a neurological test used to evaluate the integrity of the corticospinal tract. This reflex involves the stimulation of the skin along the shin, and a positive response would typically indicate an extension of the big toe. This response is significant in adults as it can reveal underlying neurological conditions.

Oppenheim's reflex is particularly useful in a clinical setting to check for upper motor neuron lesions. When this reflex is performed, it reveals the functional status of the nervous system, and a normal or regular response is an important indicator of neurological health.