What is crossed adductor reflex?
Description: There is hyperreflexia of the right knee jerk (3+) with a rightsided crossed adductor response (the crossed adductor contraction occurred because of the increased right leg tone which resulted in reflex contraction of the adductor magnus with the very slight stretch of this muscle caused by tapping the …
What is adductor reflex?
The adductor reflex is elicited by tapping over either the medial epicondyle of the femur or the medial condyle of the tibia, which should cause the adductor muscles of the hip to contract, moving the leg inwards. The sign was described by John G Hannington-Kiff in 1980.
What is reflex in medical terms?
Reflex: An involuntary reaction. For example, the corneal reflex is the blink that occurs upon irritation of the eye.
What is crossed adductor?
With the patient seated, the crossed adductor reflex may be elicited following taps to the patella that are directed in the long axis of the femur. This is an exaggerated ad- ductor response either on the ipsilateral or contralateral side fol- lowing taps to the patellar tendon in patients with absent knee jerks.
What is the purpose of crossed extensor reflex?
The crossed extensor reflex is a contralateral reflex that allows the body to compensate on one side for a stimulus on the other. For example, when one foot steps on a nail, the crossed extensor reflex shifts the body’s weight onto the other foot, protecting and withdrawing the foot on the nail.
What is a crossed adductor?
There is hyperreflexia of the right knee jerk (3+) with a rightsided crossed adductor response (the crossed adductor contraction occurred because of the increased right leg tone which resulted in reflex contraction of the adductor magnus with the very slight stretch of this muscle caused by tapping the opposite knee).
What is the adductor magnus?
The Adductor Magnus muscle is one of six muscles in the medial compartment of the thigh. Adductor Magnus is a broad triangular muscle forming a septum which divides the anterior muscles from the posterior aspect of the thigh. It is the largest muscle in the medial compartment.
What type of reflex is the crossed extensor reflex?
withdrawal reflex
The crossed extensor reflex is just a withdrawal reflex on one side with the addition of inhibitory pathways needed to maintain balance and coordination. For example, you step on a nail with your right foot as you are walking along. This will initiate a withdrawal of your right leg.
What is a crossed reflex?
What is the difference between a withdrawal and a crossed extensor reflex?
During a withdrawal reflex, the flexors in the withdrawing limb contract and the extensors relax, while in the other limb, the opposite occurs as part of the crossed extensor reflex. The crossed extensor reflex is contralateral, meaning the reflex occurs on the opposite side of the body from the stimulus.