Growth During 1 st Year. Weight -Babies generally triple their birth weight in the first year...
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Growth During 1st Year
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Weight
- Babies generally triple their birth weight in the first year
- Slight weight loss after birth then a steady gain.- 1st 6 mths - 1-2 lbs/mth.- next 6 mths 1 lb/mth
- Average 1 year old weighs between 20-22lbs
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Length / Height
- average newborn - 51 cm
- steady growth in the first year a result of rapid bone growth
- average 1 year old – 76 cm
- heredity has more influence on height than weight
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Proportion
• The size relationship between different body parts.
• Compared to the rest of the body, a baby’s head and abdomen are large and the legs and arms are short and small.
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• A babies head grow rapidly during the first year to accommodate the swiftly developing brain
• More than half of the total growth of the head occurs during this time
• Fontanels allow the head to grow, they later close up permanently
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Development During 1st Year
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Vision
• Blurry at birth
• 1 month – can focus
• 6 months – eyesight reaches clarity and sharpness of an adult
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Depth Perception
• The ability to recognize 3 dimensional objects
• 2nd month
• Allows children to track
movement and reach for
objects by judging distance
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Hearing
• Develops before birth.• At birth can recognize the
direction sound comes from• Soothing voice will calm
them• Startled by loud or angry
voices• 7 mths – can identify voices• Language development
relies on hearing
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Smell and Taste
• Newborns respond to odors• At 10 days baby can notice smell of mom• At 2 weeks baby can taste differences• At an early age babies show a preference for sweet
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Voice
• Newborn’s cry is shrill, but becomes softer as their lungs mature.
• Change results from the physical growth of the throat muscles, tongue, lips, teeth and vocal cords
• Babies prepare for speech by making word related sounds
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Teeth
• Development of baby teeth begin 6th week of pregnancy.
• “Primary teeth” or baby teeth appear at 6-7 months.
• Teething is normal but painful.
• Some babies refuse food and drool a lot.
• Lasts up to two years.
• 20 primary teeth.
Tooth Care• Infant’s mouth should be
cleaned with a damp piece of gauze after each feeding.
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Motor Skills
• The abilities that depend on the use and control of muscles.
• Two basic types of motor skills– Gross motor skills
• Large muscles – legs, shoulders• Large movements – jumping and running
– Fine motor skills• Smaller muscles – fingers• Small precise movements – using scissors
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• At birth, babies have little or no control over their muscles
• Most movements are reflexes
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Reflexes• Newborns are born with reflexes to help them
survive their first several weeks– Sucking reflex – stimulated when something is put
in their mouth– Rooting reflex – stroking the babies cheek– Others
• Shutting eyes under bright lights• Grabbing fingers• Stepping motion when feet touch the floor
• Most go away when babies learn to control their muscles
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Hand Eye Co-ordination
• The ability to move the hands and fingers precisely in relation to what is seen.
• Very poor in newborns but develops as vision and motor skills improve
• At 3 or 4 months, babies can reach, grab and put things in their mouth.