Saturday, December 18, 2010

Primitive Reflexes


The excellent illustration by Lucci Lugee Liyeung (http://artlog.liyeung.com/?cat=6)


Reflex

Mode of eliciting

Description

Moro reflex

Sudden hea Extension

Symmetrical Extension, then Flexion of all 4 limbs

Grasp


An object is placed in the palm at the base of the fingers

Flexion of the fingers of the hand

Rooting


Stimulus near the mouth

Turning of the head towards the stimulus

Placing

Infant held vertically and the dorsum of the foot brought in to contact with the surface

Lifts first one foot placing it on the surface followed by the other.

Positive supporting reflex

Infant held vertically, feet on surface

Legs take body weight, may push up against gravity

Atonic neck reflex

Lying supine the head is tuned by the examiner to one side

Infant dopts a fencing posture with the arm outstreteched on

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