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26 Cards in this Set
- Front
- Back
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Choose:
A) cleavage or B) gastrulation Period at which a morula forms |
A) cleavage
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Choose:
A) cleavage or B) gastrulation period when vast amounts of cell migration occur |
B) gastrulation
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Choose:
A) cleavage or B) gastrulation period when the three embryonic germ layers appear |
B) gastrulation
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Choose:
A) cleavage or B) gastrulation Period during which the blastocyst is formed |
A) cleavage
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Most systems are operational in the fetus by four to six months. Which system is the exception to this generalization, effecting premature infants? A) the circulatory system, B) the respiratory system
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B) the respiratory system.
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The zygote caontains chromosomes from...A) each parent and synthesizes others, B) both mother and father, but half of each.
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B) both mother and father, but half of each.
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The outer layer of the blastocyst, which later attaches to the uterus, is the...A) inner cell mass, B) trophoblast
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B) trophoblast
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The fetal membrane that forms the basis of the umbilical cord is the...A) Allantois, B) Amnion
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A) Allantois
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In the fetus, the ductus arteriosus carries blood from...A) The pulmonary artery to the pulmonary vein, B) The pulmonary trunk to the aorta
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B) The pulmonary trunk to the aorta.
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Which of the following occur in the baby's cardiovascular system after birth...A) blood clots in the umbilical vein, B) the pulmonary vessels dialate as the lungs expand, C) The ductus venosus becomes obliterated, as does the ductus arteriosus, D) all of the above
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D) all of the above:
A) blood clots in the umbilical vein, B) the pulmonary vessels dialate as the lungs expand, C) The ductus venosus becomes obliterated, as does the ductus arteriosus, |
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Following delivery of the infant, the delivery of the after birth includes the...A) The placenta and attached (torn) fetal membranes, B) The placenta and decidua
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A) the placenta and the attached (torn) fetal membranes
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Identical twins result from the fertilization of...A) one ovum by one sperm B) one ovum by two sperm
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A) one ovum by one sperm
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The umbilical veins carries....A) Oxygen and food to the fetus B) oxygen and food to the placenta
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A) oxygen and food to the fetus
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The germ layer from which the skeletal muscles, heart, and skeleton are derived is the A) ectoderm, B) mesoderm
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B) mesoderm
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Which of the following cannot pass through the placental barriers? A) blood cells, B) amino acids
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A) blood cells
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The most important hormone in initiating and maintaining lactation after birth is A) prolactin, B) oxytocin
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A) prolactin
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The initial stage of labor, during which the neck of the uterus is stretched, is the...A) dilation stage, B) expulsion stage
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A) dilation stage
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Adult derivative for:
notochord A) peritoneal cavity, B) nucleus pulposus |
B) nucleus pulposus
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Adult derivative for:
ectoderm (not neural tube) A) parietal serosa, dermis B) hair and epidermis |
B) hair and epidermis
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Adult derivative for:
intermediate mesoderm A) liver, B) kidney |
B) kidney
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Adult derivative for:
splanchnic mesoderm A) visceral serosa, B) parietal serosa |
A) visceral serosa
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Adult derivative for:
sclerotome A) vertebrae B) ribs |
B) ribs
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Adult derivative for:
coelom A) peritoneal cavity B) parietal serosa |
A) peritoneal cavity
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Adult derivative for:
Neural tube A) Brain B) peritoneal cavity |
A) brain
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Adult derivative for:
somatic mesoderm A) visceral serosa, B) parietal serosa, dermis |
B) parietal serosa, dermis
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Adult derivative for:
Endoderm A) pancreas, liver B) pancreas, kidney |
A) pancreas, liver
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