Neural Exam - Newborn reflexes - plantar reflex

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<html5media height="400" width="500">File:Newborn n 21.mp4</html5media>
Newborn n 20.jpg
This 5-day-old infant is in the alert, quiet state.
  • The normal response to stroking the lateral aspect of the plantar surface of the foot is extension of the great toe and fanning of the other toes.
  • If the stimulus is brought across the ball of the foot then a grasp reflex will be elicited and the toes will plantar flex.
  • The up going toes or “Babinski reflex” is normal in the infant and may be present for the first year of life because of the incomplete myelination of the corticospinal tracts.
The Babinski Reflex.jpg Positive : A positive Babinski reflex is defined by flexion of the big toe, towards the body, and abduction (movement away from the midline) of the remaining four toes.

Negative : A negative Babinski reflex involves all of the toes curling forward.


Neural Exam Movies: normal behaviour | cranial nerves | Newborn Tone - resting posture | upper extremity‎ | arm traction | arm recoil | scarf sign | hand position | lower extremity | leg traction‎ | leg recoil‎‎ | popliteal angle‎ | heel to ear | neck tone | head lag‎ | head control | Newborn Positions - prone | ventral suspension | vertical suspension | Newborn Reflexes - deep tendon reflexes | plantar reflex‎ | suck, root | Moro | Galant | stepping‎ | grasp | Newborn Head - head shape and sutures‎ | head circumference‎ | Neonatal Diagnosis


Movie Source - Paul D. Larsen  
Movies from the PediNeuroLogic Exam website are used by permission of Paul D. Larsen, M.D., University of Nebraska Medical Center and Suzanne S. Stensaas, Ph.D., University of Utah School of Medicine. Additional materials were drawn from resources provided by Alejandro Stern, Stern Foundation, Buenos Aires, Argentina; Kathleen Digre, M.D., University of Utah; and Daniel Jacobson, M.D., Marshfield Clinic, Wisconsin. The movies are licensed under a Creative Commons Attribution-NonCommerical-ShareAlike 2.5 License.
Links: Neural Exam Movies | Movies


Cite this page: Hill, M.A. (2024, April 16) Embryology Neural Exam - Newborn reflexes - plantar reflex. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Neural_Exam_-_Newborn_reflexes_-_plantar_reflex

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
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