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BIO304L: Human Physiology Lab

Unit 5: Patellar and Plantar Reflexes   This lab demonstrates how a patellar reflex (knee jerk or tendon reflex) and a plantar reflex are tested.  You will learn about the muscles and nerves involved in these reflexes and how the presence or absence of these reflexes may indicate a neurological problem.  

Unit 5 Time Advisory
This unit will take approximately 2 hours to complete.

  • Web Media: YouTube: HAPProf: “The Tendon Reflex,” jjarse2: I”nfant Reflexes,” exintor8888: “Babinski reflex positive,” and Beneslachto: “Patellarreflex” and “Babinski Reflex” Links: YouTube: HAPProf: “The Tendon Reflex,” (YouTube) jjarse2: “Infant Reflexes,” (YouTube) exintor8888: “Babinski reflex positive,” (YouTube) and Beneslachto: “Patellarreflex” (YouTube) and “Babinski Reflex” (YouTube)
     
    Instructions: “The Tendon Reflex” (about 6 minutes) provides background information on the patellar reflex, including the muscles and nerves involved in the movement.  The second video, “Infant Reflexes” (about 4.5 minutes), shows the reflexes that are supposed to be present in a healthy infant, including the Babinski reflex.  “Babinski reflex positive” (5 seconds) demonstrates a Babinski reflex in an adult that indicates a neurological problem.  “Pattellarreflex” (about 1.5 minutes) demonstrates how to perform the patellar reflex test, and “Babinski Reflex” (about 2 minutes) demonstrates how to perform the plantar reflex test. 
     
    Terms of Use: Please respect the copyright and terms of use displayed on the webpage above.

  • Activity: Austin Community College: “Human Reflexes” Links: Austin Community College: “Human Reflexes” (Microsoft Word) 
     
    Instructions: For the first link, scroll to the bottom of the webpage and click on Lab4 (Reflexes).  Please read through the introduction and objectives and then perform activities 1 (“The Pateller Tendon Reflex”) and 3 (The Plantar Reflex).  
     
    Terms of Use: Please respect the copyright and terms of use displayed on the webpage above.