Reflexes

Babinski Sign

big toe upward, other toes out, when sole of foot is touched

Hoffman Sign

Thumb + Index finger flex/twitch when middle finger nail is tapped

Protective extension

Put arms out to protect from a fall

Equilibrium Righting reactions

Help body maintain balance when center of gravity shifts

Equilibrium Postural Fixation

Sensory input and motor output work together to maintain upright position + posture

Asymmetrical Tonic Neck reflex

Turn head to one side, same side extends, opposite side flexes

Symmetrical tonic neck reflex

Head flexion: arms flex, legs extend

Head extension: arms extend, legs flex

Tonic Labyrinthine reflex

limbs extends when head extend, limbs flex when head flex

positive supporting reactions

Baby extends legs to support themselves when held upright

Flexor withdrawal

Spinal Reflex, retreat from harmful stimuli

Crossed Extension

Spinal reflex, opposite limb extends to provide support when other limb is pulled away from harmful stimuli