MILESTONES OF FETAL GROWTH AND
DEVELOPMENT(Completely solved)
the first day of the last menstrual period (gestational age) correct answersthe length of a
pregnancy is more commonly measured from
lunar months correct answers4-week periods
trimesters correct answers3-month periods
10 months (40 weeks or 280 days) long correct answersIn lunar months, a total pregnancy is
End of Fourth Gestational Week correct answersThe length of the embryo is about 0.75 cm;
weight is about 400 mg.
• The spinal cord is formed and fused at the midpoint.
• The head is large in proportion and represents about one third of the entire structure.
• The rudimentary heart appears as a prominent bulge on the anterior surface.
• Arms and legs are bud-like structures; rudimentary eyes, ears, and nose are discernible.
End of Eighth Gestational Week correct answers• The length of the fetus is about 2.5 cm (1 in.);
weight is about 20 g.
• Organogenesis is complete.
• The heart, with a septum and valves, beats rhythmically.
• Facial features are definitely discernible; arms and legs have developed.
• External genitalia are forming, but sex is not yet distinguishable by simple observation.
• The abdomen bulges forward because the fetal intestine is growing so rapidly.
• A sonogram shows a gestational sac, which is diagnostic of pregnancy
End of 12th Gestational Week (First Trimester) correct answers• The length of the fetus is 7 to 8
cm; weight is about 45 g.
• Nail beds are forming on fingers and toes.
• Spontaneous movements are possible, although they are usually too faint to be
felt by the mother.
• Some reflexes, such as the Babinski reflex, are present.
• Bone ossification centers begin to form.
• Tooth buds are present.
• Sex is distinguishable on outward appearance.
• Urine secretion begins but may not yet be evident in amniotic fluid.
• The heartbeat is audible through Doppler technology.
End of 16th Gestational Week correct answers• The length of the fetus is 10 to 17cm; weight is
55 to 120g.
• Fetal heart sounds are audible by an ordinary stethoscope.
• Lanugo is well formed.
• Both the liver and pancreas are functioning.
DEVELOPMENT(Completely solved)
the first day of the last menstrual period (gestational age) correct answersthe length of a
pregnancy is more commonly measured from
lunar months correct answers4-week periods
trimesters correct answers3-month periods
10 months (40 weeks or 280 days) long correct answersIn lunar months, a total pregnancy is
End of Fourth Gestational Week correct answersThe length of the embryo is about 0.75 cm;
weight is about 400 mg.
• The spinal cord is formed and fused at the midpoint.
• The head is large in proportion and represents about one third of the entire structure.
• The rudimentary heart appears as a prominent bulge on the anterior surface.
• Arms and legs are bud-like structures; rudimentary eyes, ears, and nose are discernible.
End of Eighth Gestational Week correct answers• The length of the fetus is about 2.5 cm (1 in.);
weight is about 20 g.
• Organogenesis is complete.
• The heart, with a septum and valves, beats rhythmically.
• Facial features are definitely discernible; arms and legs have developed.
• External genitalia are forming, but sex is not yet distinguishable by simple observation.
• The abdomen bulges forward because the fetal intestine is growing so rapidly.
• A sonogram shows a gestational sac, which is diagnostic of pregnancy
End of 12th Gestational Week (First Trimester) correct answers• The length of the fetus is 7 to 8
cm; weight is about 45 g.
• Nail beds are forming on fingers and toes.
• Spontaneous movements are possible, although they are usually too faint to be
felt by the mother.
• Some reflexes, such as the Babinski reflex, are present.
• Bone ossification centers begin to form.
• Tooth buds are present.
• Sex is distinguishable on outward appearance.
• Urine secretion begins but may not yet be evident in amniotic fluid.
• The heartbeat is audible through Doppler technology.
End of 16th Gestational Week correct answers• The length of the fetus is 10 to 17cm; weight is
55 to 120g.
• Fetal heart sounds are audible by an ordinary stethoscope.
• Lanugo is well formed.
• Both the liver and pancreas are functioning.
