L1 Neonate Flashcards
(45 cards)
Neuromaturational Theories
-Development set, invariant
-Tightly tied to CNS
-Occurs cephalocaudal, proximal to distal
-Recent research acknowledges that there is variation in sequence and input from all systems
Cognitive Theories
thinking develops in stages of increasing complexity
organize mental schemes through mental operations
Behavioral theories
behavior is shaped by environment
assumes most behaviors learned responses
primary concepts used in applied behavior analysis
Psychoanalytical/psychosocial theories
Biologically determined drives, unconscious conflicts
initial drive for survival when basic needs met, see self-actualization
Ecological, contextual. theories
environment has a very strong influence on overall development
Dynamic Systems theories
movement emerges based on internal milieu, external environment, task
movement directed by dynamic, interacting systems
Neuronal Group Selection
Infant motor development with increased and decreased periods of variability, resultant from changes in CNS
Structure and function of neural networks created via genetic coding in infant development and environmental exposure/active movement related to behavioral experience
Prenatal
before birth
Gestation
measured in weeks, from the first day of the woman’s last menstrual cycle to the current date
Fertilization
egg fertilized by sperm to form zygote
Embryo
week 2-8 after fertilization
(beginning at week 2 accounts for the menstrual cycle)
Fetus
Developing week 9-37
Full term
equal to or greater than 37 weeks
Premature
less than 37 weeks
Neonate
infant up to 28 days after birth
Gastrulation Layers
Ectoderm
Mesoderm
Endoderm
Mesodermal cells
form notochord
Ectodermal cells
overlying cells at neural place fold inward to form neural tube, joining ends form neural crest
Neural tube
becomes CNS
formed from ectoderm
Neural Crest
forms PNS, enteric nervous system, melanocytes, facial cartilage, cornea, inner ear, odontoblasts, enterochromaffin cells, spiral membrane
Remaining Ectoderm…
will form epidermis of skin, hair, exocrine glands, anterior pituitary gland
Cardiovascular Development
mesoderm
first system to develop
heart beat by week 4
Pulmonary Development
lower tract begins day 22, will form on ventral wall of primitive endoderm
lungs develop in 5 stages
5 stages of lung development
Embryonic –> 3-6 weeks
Pseudoglandular –> 5-17 weeks
Canalicular –> 16-25 weeks
Saccular –> 24 weeks to birth
Alveolar –> 36 weeks to 8 years