There are several different types of reflex actions, including:
- Knee jerk reflex: This is a simple reflex that involves the contraction of the quadriceps muscle in response to tapping the patellar tendon.
- Pupil reflex: When light enters the eye, it stimulates the pupil reflex, causing the pupils to constrict and reduce light entry.
- Withdrawal reflex: This is a more complex reflex that involves the contraction of muscles in response to pain or other stimuli, allowing the body to withdraw from harm.
This comparison covers Comparing Reflex Actions within Reflex Arc for GCSE Biology. Topic 3: Reflex Arc It is section 6 of 15 in this topic. Use this comparison to connect the idea to the wider topic before moving on to questions and flashcards.
Practice questions for Reflex Arc
Which word best describes a reflex action?
State the correct order of the reflex arc pathway from stimulus to response. Name each component.
Quick recall flashcards
What is the reflex arc pathway?
Stimulus โ Receptor โ Sensory neurone โ Relay neurone (in spinal cord) โ Motor neurone โ Effector โ Response.
What is a reflex action?
A reflex is a rapid, automatic response to a stimulus that does not involve conscious thought. Reflexes protect the body from harm.