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  2. Plantar reflex - Wikipedia

    en.wikipedia.org/wiki/Plantar_reflex

    Babinski's sign in a healthy newborn. The Babinski sign can indicate upper motor neuron lesion constituting damage to the corticospinal tract.Occasionally, a pathological plantar reflex is the first and only indication of a serious disease process and a clearly abnormal plantar reflex often prompts detailed neurological investigations, including CT scanning of the brain or MRI of the spine, as ...

  3. List of reflexes - Wikipedia

    en.wikipedia.org/wiki/List_of_reflexes

    A list of reflexes in humans. Abdominal reflex; Accommodation reflex — coordinated changes in the vergence, lens shape and pupil size when looking at a distant object after a near object. Acoustic reflex or attenuation reflex — contraction of the stapedius and tensor tympani muscles in the middle ear in response to high sound intensities.

  4. Cutaneous reflex in human locomotion - Wikipedia

    en.wikipedia.org/wiki/Cutaneous_reflex_in_human...

    Reflexes can be very simple, as in the monosynaptic reflex, which only contains one synapse, or more complicated, as in the polysynaptic reflex, which involves more than one synapse. The knee jerk reflex is a common example of a monosynaptic reflex when one is looking at the quadriceps motor response of kicking your leg out.

  5. Primitive reflexes - Wikipedia

    en.wikipedia.org/wiki/Primitive_reflexes

    A plantar reflex is a normal reflex that involves plantar flexion of the foot, which moves toes away from the shin and curls them down. An abnormal plantar reflex (Babinski sign) occurs when upper motor neuron control over the flexion reflex circuit is interrupted. This results in a dorsiflexion of the foot (foot angles towards the shin, big ...

  6. List of eponymous medical signs - Wikipedia

    en.wikipedia.org/wiki/List_of_eponymous_medical...

    abnormal plantar reflex: Kumar SP, Ramasubramanian D (December 2000). "The Babinski sign—a reappraisal". Neurol India. 48 (4): 314– 8. PMID 11146592: dorsiflexion of the hallux with fanning of the remaining phalanges upon soft stimulation of the lateral plantar surface of the foot Bainbridge reflex: Francis Arthur Bainbridge

  7. Hoffmann's reflex - Wikipedia

    en.wikipedia.org/wiki/Hoffmann's_reflex

    Hoffmann's reflex is a deep tendon reflex (spindle fibre) with a monosynaptic reflex pathway in Rexed lamina IX of the spinal cord, normally fully inhibited by descending input. On the other hand, the plantar reflex is more complicated and not a deep tendon reflex, and its pathway is both more complicated and not fully understood. [8]

  8. Reflex - Wikipedia

    en.wikipedia.org/wiki/Reflex

    The simplest reflex is initiated by a stimulus, which activates an afferent nerve. The signal is then passed to a response neuron, which generates a response. Reflexes are found with varying levels of complexity in organisms with a nervous system. A reflex occurs via neural pathways in the nervous system called reflex arcs.

  9. Hypertonia - Wikipedia

    en.wikipedia.org/wiki/Hypertonia

    Symptoms associated with central nervous systems disorders are classified into positive and negative categories. Positive symptoms include those that increase muscle activity through hyper-excitability of the stretch reflex (i.e., rigidity and spasticity) where negative symptoms include those of insufficient muscle activity (i.e. weakness) and reduced motor function. [5]