Exam 10: Fetal Development and the Cardiopulmonary System

Which of the following structures would compose the placental cotyledons? I. Fetal vessels II. Chorionic villi III. Intervillous spaces

What does the presence of phosphatidyglycerol (PG) in the amniotic fluid indicate?

Which vessels transports oxygenated blood and nutrients from the placenta to the fetus?

Which of the following would be most likely to develop after delivery of a newborn at 27 weeks gestational age?

At what gestational age are as many as 75 percent of the conducting airways developed?

How is fetal lung fluid normally removed? I. Squeezed out during vaginal delivery II. Absorbed by the pulmonary capillaries III. Absorbed by the lymphatic system IV. Removed by vigorous endobronchial suctioning by the delivery room staff

What is the average value for airway resistance in a newborn?

At what gestational age does the terminal saccular period begin?

After birth, into what structure does the umbilical vein evolve?

If a registered respiratory therapist successfully completes the NBRC's neonatal/pediatric specialty credential, what credential would be awarded?

What factor causes closure of the foramen ovale?

Which of the following nerves, when stimulated, causes a decrease in the respiratory and heart rates of the newborn?

What of the following influence the oxygen transfer from maternal to fetal blood? I. Maternal-fetal PO₂ gradient II. Higher hemoglobin concentration in fetal blood III. Lower affinity of HbF for oxygen

Which of the following factors contribute to stimulate the first breath? I. Tactile stimulation II. Stimulation of central chemoreceptors III. Stimulation of peripheral chemoreceptors IV. Thermal stimuli

What intrapleural pressure must be generated to initiate the first breath?