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3.1 THE NEONATE
Terms in this set (122)
First 4 weeks
Focuses on caring for the newborn infant during the _________ weeks.
Neonatology also includes caring for the fetus beginning from _______ weeks age of gestation to 28 days of postnatal life.
Maternal fetal medicine that focuses on caring for the fetus and mother during pregnancy.
Age of gestation for fetal viability
From conception until before the 8th week
: From the 9th week after conception until term while in the uterus.
During this time organs formed in the embryonic period continue to develop and the fetus grows in size and weight.
Week 9 to 36
The fetal stage starts from ______ to _________.
Somatic, Neurologic, Behavioral, and Psychologic changes in parents
What are the 4 realms of fetal development?
S: Fertilization and implantation (until about Day 6) Embryonic period begins (Blastocyst)
S: Endoderm and ectoderm appear (bilaminar embryo)
First missed menstrual period is at what week?
S: mesoderm appears (trilaminar embryo: endoderm, ectoderm, mesoderm); somites begin to form: neural tube, blood vessels, heart tubes.
N: Neural plate appears on the ectodermal surfaces
S: Folding of embryo into human-like shape; arm and leg buds appear; crown-rump length 4-5mm
N: Infolding produces a neural tube that will become the CNS and a neural crest that will become the PNS. Neuroectodermal cells differentiate into neurons, astrocytes, oligodendrocytes, ependymal cells. Microglial cells are derived from the mesoderm
S: Lens placodes (future eyes), primitive mouth, digital rays on hands (fingers)
N: 3 main subdivisions of forebrain, midbrain, and hindbrain are evident. The dorsal and ventral horns of the spinal cord have begun to form, along with the peripheral motor and sensory nerves. Myelinization begins at mid-gestation and continues for years.
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