Finals: Reflexes Flashcards
What is the stimulus for the Moro reflex?
Body position change (not auditory stimulus).
What is the stimulus for the startle reflex?
Loud sounds (auditory stimulus).
What is the stimulus for the amphibian reflex?
Raising the pelvis of the baby, causing ipsilateral hand and leg flexion.
What is the Babinski reflex?
A primitive reflex where stroking the sole of the foot causes the big toe to extend and the other toes to fan out.
What is Chaddock’s sign?
A variation of the Babinski reflex, where stroking the lateral malleolus elicits a similar toe response.
What is Gordon’s sign?
A variation of the Babinski reflex, where squeezing the calf muscle elicits a similar toe response.
What is Oppenheimer’s sign?
A variation of the Babinski reflex, where stroking down the tibia elicits a similar toe response.
What is the flexor withdrawal reflex?
A primitive reflex where flexion of a limb occurs in response to a painful stimulus, preventing isolated joint movements.
At what age does the flexor withdrawal reflex typically disappear?
Around 2 months.
What is the cross extensor reflex?
A reflex that coexists with the flexor withdrawal reflex; when one limb withdraws from a painful stimulus, the opposite limb extends.
What is the symmetric tonic neck reflex (STNR)?
When the head is flexed, the arms flex and the legs extend; when the head is extended, the arms extend and the legs flex.
What is the asymmetric tonic neck reflex (ATNR)?
When the head is turned to one side, the arm and leg on that side extend, and the arm and leg on the opposite side flex.
What is the labyrinthine reflex?
Prone position leads to flexion of the limbs, and supine position leads to extension of the limbs.
: What is the body righting on head reflex?
The body tries to keep the head upright when the body position changes.
What is the body righting on body reflex?
Aligning the body segments when one part of the body is moved.
What is the consensual eye reflex?
When one eye is exposed to light, both pupils constrict.
What is the doll’s eye reflex?
When the head is rotated, the eyes maintain fixation on a visual target, indicating normal brainstem function.
What does a lack of the doll’s eye reflex indicate?
A possible brain lesion.
: What is the gag reflex testing?
The function of the vagus nerve.
What is the glabellar tap reflex?
Blinking in response to tapping the glabella (forehead area between the eyes).
What is homolateral limb synkinesis?
An abnormal reflex where a voluntary movement on one side of the body causes involuntary movement on the same side.
What is Soque’s phenomenon?
In stroke patients, when the shoulder is abducted to 90 degrees or more, the fingers slowly open.
What is the plantar grasp reflex?
Stroking the sole of an infant’s foot causes the toes to curl.
What is Raimiste’s phenomenon?
In stroke patients, resistance applied to the unaffected limb causes the affected limb to move in the same direction.
