Chapter 10 - Lifespan Development Flashcards Preview

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Flashcards in Chapter 10 - Lifespan Development Deck (137)
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1

where are eggs fertilized??

fallopian tubes

2

within 6 days of eggs fertilizing in the fallopian tubes, the resulting zygote becomes a ______ and is implanted along the lining of the uterus

blastocyte

3

what are the 3 phases on prenatal development?

Germinal: 0 to 2 weeks
Embryonic: 2 to 8 weeks
Fetal Stage: 8 weeks to birth

4

what happens during the germinal phase of prenatal development?

migration of the blastocyst from the fallopian times and its implantation in the uterus. cellular divisions take place that eventually lead to multiple organ, nervous system and skin tissues.

5

what happens during the embryonic phase of prenatal development?

basic cell layers become differentiated. Major structures such as the head, heart, limbs, hands, and feet emerge. The embryo attaches to the placenta, the structure that allows for the exchange of oxygen and nutrients and the removal of wastes

6

what happens during the fetal stage of prenatal development?

brain development progresses as distinct regions take form. The Circulatory, respiratory, digestive and other bodily systems develop. sex organs appear at around the third month of gestation

7

by 3 months the ______ hemispheres have formed.

cerebral

8

at 40 weeks, the brain has almost _______ neurons and a convoluted (folded) cortex

100 billion neurons

9

preterm infants

infant born earlier than 36 weeks

10

why do preterm infants have immediate challenges such as breathing on their own and maintaining an appropriate body temperature?

because they have underdeveloped brains and lungs

11

what is the survival rate for 30-week infants?

95%

12

what is the survival rate for 25-week infants?

50%

13

Newborn individualized developmental care and assessment program (NIDCAP)

a behaviourally based intervention in which preterm infants are closely observed and given intensive care during early development (minimal lights, sound levels and stress)

14

kangaroo care

skin-to-skin contact between babies and caregivers

15

teratogens

substances, such as drugs or environmental toxins, that impair the process of development

16

20,000 canadians from 1959-1962 were harmed by the anti-nausea drug ______

thalidomide

17

what does phocomelia mean?

seal limb

18

what are 4 agents that cross the placenta?

1) german measles
2) x rays and other radiation, toxic chemicals
3) cigarette smoking
4) recreational drugs

19

Fetal Alcohol Syndrome

abnormalities in mental functioning, growth and facial development in the offspring of women who use alcohol during pregnancy

20

what are 4 key features of children with FAS?

1) smaller brains
2) facial deformities
3) coordination problems
4) developmentally delayed

21

what is the leading cause of non-hereditary mental retardation?

FAS

22

___% of canadian women reported consuming some alcohol during their pregnancy

25%

23

FAS is thought to affect __-__ babies in every 1000 live births

1-3

24

reflexes

involuntary muscular reactions to specific types of stimulation

25

rooting

stimulation of the corner of the mouth causes the infant to orient herself toward the stimulation and begin sucking motions

26

swallowing

an infant can swallow, though this reflex is not yet well coordinated with 'mouth breathing'

27

moro or startle

when infants grimace and reach their arms outward and then inward in a protective motion

28

babinski

in response to a touch on the bottom of the foot, the infants toes will splay outward and then curl in

29

grasping

when an infant palm is stimulated, she will grasp the stimulating object; this facilitates holding on to the caregiver

30

stepping

if held so that the feet just touch the ground, an infant will show "walking" movements, alternating the feet in steps