Final answer:
The tonic-neck reflex is a reflex found in newborns that disappears at 6 months.
Step-by-step explanation:
The tonic-neck reflex is a reflex found in newborns that disappears at 6 months. This reflex is also known as the fencing reflex because it mimics the position of a fencer. When a baby's head is turned to one side, their arm on the same side will extend straight out, while the opposite arm will flex at the elbow. This reflex helps babies learn to control their body movements and develop their motor skills.
The tonic-neck reflex, also known as the 'fencer's pose', is a behavior exhibited by newborns which disappears as they grow older. This reflex is characterized by a baby turning their head to one side, extending the arm on that side while the opposite arm bends, resembling a fencer's stance. This reflex is seen in newborns and is typically outgrown by the time the infant reaches around 6 months of age.