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What are Teratogens? - Answer-Agents such as drugs and alcohol that cause
abnormalities in the fetus.
When does the embryo start to develop a primitive brain, spinal cord, and beating
heart? - Answer-3-4 weeks.
When does the embryo start to develop external body structures? - Answer-5-8 weeks.
When is the Fetal Period? - Answer-9 weeks onward.
When can you determine the sex of the baby? - Answer-12 weeks.
When can the mother start to feel movement form the fetus? - Answer-16 weeks (4
months).
When does the fetus start to respond to sound? - Answer-6 months.
What other types of perception does the fetus develop after 6 months? - Answer-
Awareness of external stimuli
Memory
What initiates childbirth? - Answer-Increased adrenal activity by the fetus which causes
the mother to produce oxytocin to induce labor.
What are the 3 stages of labor? - Answer-effacement/dilation of the cervix
delivery of the baby
delivery of the placenta
What is cephalocaudal trend of development? - Answer-The head grows more than the
rest of the body.
The infant uses the upper body more than the lower body.
What is the proximodistal trend of development? - Answer-The body grows from the
center of the body outwards.
When is the neural tube developed? - Answer-1st month.
When does the neural tube begin to differentiate between nerve and brain cells? -
Answer-2nd month.
When does an embryo begin to react to its environment? - Answer-3rd month.