chapter 5 motor skills || A Verified A+ Pass.

Rooting reflex correct answers when an infant's cheek is stroked or the side of the mouth is touched, the infant turns its head and tries to find something to suck Sucking reflex correct answers occurs when infants suck an object placed in their mouth. •Enables the infant to get nourishment before it associates a nipple with food. Dynamic systems theory correct answers infants assemble motor skills for perceiving and acting. Motivation leads to new motor behaviors, which are "tuned" with repetition. New motor behaviors are therefore the result of the body's physical properties, nervous system development, the goal the child is motivated to reach, and environmental support. •Crawling, reaching, walking. Moro reflex correct answers a startle response to sudden, intense noise or movement. •Newborns arch their back, throw back their head, and fling out their arms and legs, then rapidly close them. Some reflexes persist throughout life. •Coughing, sneezing, blinking, shivering, and yawning. Some reflexes are incorporated into more complex voluntary actions. •Grasping reflex: correct answers infants tightly grasp any object placed in their palm. Gross motor skills correct answers are those that involve large-muscle activities, such as moving one's arms or walking. The development of posture. skills development requires postural control. Dynamic process linked with: •Sensory information in the skin, joints, and muscles, which tell us where we are in space. •Vestibular organs in the inner ears that regulate balance and equilibrium. Vision and hearing. Development in the second year. correct answers •Motor accomplishments of the first year bring increasing independence. By 13-18 months, toddlers can pull a toy by a string and climb steps •By 18-24 months, they can walk quickly or run stiffly, balance on their feet, walk backward, stand and kick or throw a ball, and jump in place. Motor development milestones and variations in the first year. correct answers •Timing of motor development milestones varies by as much as two to four months. •Experiences can modify the onset of accomplishments. •Infants develop new skills with caregiver guidance.