It is formed by the lower part of the femur, the tibial plateau and the knee cap. It enables hinge and rotating movements as the connection between the upper and lower leg. This means that we can not only bend the lower leg backward but also rotate the lower leg and foot towards the upper leg.
By the time they're 9 months old, most babies have developed the fine motor skills â the small, precise movements â needed to pick up small pieces of food and feed themselves. You may notice that yours can take hold of food (and other small objects) between forefinger and thumb in a pincer grasp.
Breast milk or formula is the only food your newborn needs, and the American Academy of Pediatrics recommends exclusive breast-feeding for the first six months after birth. But by ages 4 months to 6 months, most babies are ready to begin eating solid foods as a complement to breast-feeding or formula-feeding. It's during this time that babies typically stop using their tongues to push food out of their mouths and begin to develop the coordination to move solid food from the front of the mouth to the back for swallowing.