the patellar knee jerk reflex is an example of stretch reflex.
the patellar knee jerk reflex is an example of stretch reflex.
the patellar knee jerk reflex is an example of?
stretch reflex
westphal's sign









































westphal's sign is the clinical correlate of the absence or decrease of patellar reflex or knee jerk. patellar reflex or knee jerk is a kind of deep or stretch reflex where an application of a stimulus to the patellar tendon such as strike by a solid object or hammer caused the leg to extend due to such stimulus causes the quadriceps femoris muscle to contract.









































it is named for carl friedrich otto westphal (1833-1890).









































section::::associated conditions.









































westphal's sign has a clinical significance used in determining neurodisorders or diseases such as:
westphal's sign
bullet::::- golgi tendon reflex









































bullet::::- hering–breuer reflex — is a reflex triggered to prevent over-inflation of the lung









































bullet::::- hoffmann's reflex — also known as the finger flexor reflex; middle finger and thumb response. test can indicate both neurological damage and nerve regeneration; often combined with the babinski reflex test.









































bullet::::- jaw jerk reflex









































bullet::::- knee jerk or patellar reflex — a kick caused by striking the patellar tendon with a tendon hammer just below the patella, stimulating the l4 and l3 reflex arcs.
list of reflexes