Homeostasis & ResponseRequired Practical
Required Practical: Measuring Reflex Times
Part of Reflex Arc — GCSE Biology
This required practical covers Required Practical: Measuring Reflex Times within Reflex Arc for GCSE Biology. Topic 3: Reflex Arc It is section 4 of 14 in this topic. Revise both the method and the reason for each step, because practical questions often test understanding rather than pure recall.
Topic position
Section 4 of 14
Practice
15 questions
Recall
20 flashcards
Required Practical: Measuring Reflex Times
In this practical, you will measure the time it takes for a person's knee jerk reflex to occur. This will involve:
- Using a stopwatch or timer to record the reaction time.
- Tapping the patellar tendon with a reflex hammer while the leg is relaxed.
- Recording the time between the tap and the muscle contraction in the quadriceps.