Exam 1 chapter 4 powerpoint/lecture Flashcards
(28 cards)
what is cephalocaudal development?
growth and development proceeds from the head downward
what is proximodistal development
growth and development proceed from the center of body outward
what percent of newborn’s head is the whole body?
25 percent
what is one of the best ways of meeting infants’ complex nutritional needs?
breastfeeding
breastfeeding provides an _____ surge to mothers and infants
oxytocin
breastfeeding makes infants less likely to have what?
allergy and digestion issues
what is one of the biggest contirbutors to breast feeding?
paid maternity leave
how long does the typical newborn sleep per day?
18 hours
when do infants show signs of day-night sleep rhytms?
8 weeks
when are solid foods introduced to infants?
4-6 months of age
what is marasmus?
disease where body begins to waste away, consuming fat and muscle
what is kwashiorkor?
disease that comes from sudden and drastic reduction in calories.
what is failure to thrive?
infants weight is less than 80 percent of the norm
what are glial cells?
brain cells that support neurons
glial cells are __ times more common than neurons
10
define neurogenesis
creation of new neurons that begin in the embryo’s neural tube
we are born with greater than 100 ______ neurons
billion
what is synaptogenesis?
creation of connections amongst neurons
define transient exuberence
explosion in connections in the early years of life
define synapses
gap between neurons
define myelination
addition of myelin sheath around axons of neurons
what is synaptic pruning?
loss of unused neural connections
what is experience-expectant brain development
brain depends on experiencing certain basic events and stimuli at key points in time to dvelop normally
learning language and visual processing are examples of experience-______ brain development
expectant