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Placental Stage and Newborn Transition

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Questions and Answers

What is necessary for the proper development of blood vessels?

Anatomical changes in lungs

High cardiac output

Presence of oxygen in the fetal lungs

Experience of blood flow (correct)

Why is the passage of blood through the pulmonary circuit after birth significant?

To ensure proper oxygenation of the blood

To allow oxygen exchange with the amniotic fluid

To provide oxygen to the fetal lung tissue (correct)

To prevent cardiovascular problems in the fetus

Which physiological change is commonly associated with the respiratory system during pregnancy?

Reduced nasal congestion

Increased breathlessness (dyspnea) (correct)

Decreased tidal volume

Lower risk of morning sickness

What causes Lordosis during pregnancy?

Changes in center of gravity Signup and view all the answers

Which maternal hormone stimulates breast maturation and fetal growth during pregnancy?

hPL (human placental lactogen) Signup and view all the answers

What condition might arise due to stress incontinence during pregnancy?

Varicose veins Signup and view all the answers

What is the main trigger for the baby's first breath?

Decreased CO2 levels Signup and view all the answers

What is the approximate initial respiratory rate of a newborn in the first two weeks?

~45 per minute Signup and view all the answers

Why is it difficult for premature babies to keep their lungs inflated?

Low surfactant levels Signup and view all the answers

What best describes the transitional period of increased instability in newborns?

6-8 hours after birth Signup and view all the answers

What happens to the fetal shunts in a newborn shortly after birth?

Close within 30 minutes Signup and view all the answers

Which vessel remains open for up to a year after birth?

Foramen ovale Signup and view all the answers

Why do health professionals often look for the outward appearance of structures like the ears in neonatal care?

Ears form at the same time as certain internal organs and could indicate a malfunction of overall development during that time period. Signup and view all the answers

What is the primary focus of growth during the fetal period?

Rapid growth of the fetal body. Signup and view all the answers

When can most bones in the fetus be identified?

Fourth month Signup and view all the answers

What is the function of Vernix caseosa in fetal development?

Protection of the skin in utero. Signup and view all the answers

What unique vascular modifications are present in fetal circulation?

Umbilical arteries and vein, ductus venosus, foramen ovale, and ductus arteriosus. Signup and view all the answers

Why is it necessary to send some blood through the pulmonary circuit in a fetus?

To develop the lungs. Signup and view all the answers