What are the primitive reflex newborn

Birth after a reflex action, known as primitive reflexes. Primitive reflex is a neonatal birth, usually born a few months later subsided. As in the neonatal period, these reflections disappear or diminish, indicating baby may be sick, it is timely to the hospital. Newborns have the following primitive reflexes:
Grasp reflex: the finger of a hand or a small wooden heart on the baby, your baby will be the hand up, step up, so that your baby's body can be lifted.
Embrace reflection: baby frightened or head suddenly fell down, or hold your baby hands, quietly lifted the baby, down suddenly, the baby's hands suddenly moved forward and hugged like to do.
Feeding reflex: The baby pacifier or a finger touch of a cheek, your baby will turn to a finger or nipple head.
Sucking reflex: The baby pacifier or a finger into the mouth, sucking baby will be open.