Psychology 305 Chapter 3 Flashcards
Implantation
Between the seventh and ninth day, the Blastocyst burrows deep into the uterine lining
Amnion
Is another word for the membrane which encloses the developing organism in amniotic fluid, which helps keep the temperature of the prenatal world of consent and provides a cushion against any jolts caused by the woman’s movement.
Chorion
which surrounds the amnion. Tiny hairlike bloodvesels emerge.
Placenta
Brings the embryos and the mothers blood together, the placenta permits foods and oxygen to reach the organism and waste products get carried away.
Umbilical cord
First appears as a tiny stalk during the course of pregnancy grows into a 1 foot cord which is one large vein that delivers blood loaded with nutrients and two arteries that remove waste products
Embryo
Embryo period lasts from implantation through the eighth week of pregnancy. During these brief six weeks, the most rapid prenatal changes take place and the groundwork is laid for all body structures and internal organs.
Neural tube
Is the primitive spinal cord
Fetus
Is the period from the ninth week to the end of pregnancy, it is the longest prenatal period. During this growth and finishing phase the organism increases rapidly in size
Trimesters
Prenatal development is sometimes divided into three equal time periods
Vernix
Is a white cheese like substance that protects its skin from chapping during the long months spent bathing in the amniotic fluid.
Lanugo
Is the white downy hair that appears over the entire body helping the Vernix stick to skin.
Age of Viability
The point where the baby can first survive occurs some time between 22 and 26
Teratogen
Refers to any environmental agent that causes damage during the prenatal period
Fetal alcohol spectrum disorder (FASD)
A term that encompasses a range of physical, mental, and behavioral outcomes caused by prenatal alcohol exposure
Fetal alcohol syndrome
Distinguished by a slow physical growth a pattern of three facial abnormalities (short eyelid openings, facial indentations), Brain injury
Alcohol related neurodevelopment disorder
In which at least three areas of mental functioning are impaired, despite typical physical growth absence of facial abnormalities. Again prenatal alcohol exposure through confirmed, is less pervasive than in FAS
Rh factor incompatibility
When the mother is Rh-negative and the father is Rh-Positive -has the protein. The baby may inherit the father Rh positive blood type. If even a little of a fetus’s RH positive blood crosses the plecenta into the Rh Negative mother bloodstream, she begins to form antibodies to the foreign Rh protein. If these enter the fetus’s system they destroy red blood cells reducing the oxygen supply to organs and tissues.
Apgar Scale
Assesses the newborns physical conditions quickly, doctors and nurses use this scale
Natural or Prepared childbirth
A group of techniques aimed at reducing pain and medical intervention and making childbirth a rewarding experience
Anoxia
inadequate oxygen supply
Breech position
Is turned so that the buttocks or feet would be delivered first
Fetal monitors
Are electronic instruments that track the baby’s heart rate during labor
Cesarean delivery
Is a surgical birth; the doctor makes an incision in the mothers abdomen and lifts the baby out of the uterus.
Pretern infants
Are those born several week or more before due date
