changes, in the newborn at birth…

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birth, in the newborn the fetus is still, in the womb, lungs, full of amniotic fluid, not used, breathing, waste removal, oxygen exchange, occurs, the placenta, at birth, baby's body must suddenly adjust to new processes, sustaining life in its new environment, fetal structures, blood is pumped, the umbilical cord, placenta, waste excretion, oxygen exchange, bypassing the lungs, fetus, structures, in the fetal vascular system that make this type of blood movement possible, ductus arteriosus, link between the blood vessels that, supply blood, lungs, gaseous exchange, aorta, main vessel supplying oxygenated blood, foramen ovale, an opening between the atria, top chambers, the heart, facilitates movement of oxygenated blood, the fetus' body, ductus venosus, a blood vessel leading, liver to a larger vessel, the inferior vena cava, umbilical vein, vessel leading, umbilical cord, liver, vessel delivers oxygenated blood, fetus' body, umbilical arteries, vessels leading, fetal arterial system, umbilical cord, deoxygenated blood, carried, vessels, fetus, in the womb, blood flows, the placenta, waste products, removed, oxygen is picked up, an exchange process, the mother's blood vessels, membranes, the fetal blood, does not come in contact, maternal blood, cleansed, oxygenated blood flows, the large umbilical vein, the liver, ductus venosus, inferior vena cava, heart, a small amount is pumped, lungs, a majority flows, the foramen ovale, ductus arteriosus, aorta, blood is then distributed throughout the body, deoxygenated blood is then returned, the umbilical arteries, placenta, where waste products, removed, blood is reoxygenated, changes at birth, a vaginal birth the lungs, compressed, removing, the fluid that formerly filled the lungs, once the head emerges, vaginal canal, healthcare provider removes fluid, nasal, oral cavities, a suction bulb, to help clear the airway, the baby emerges, healthcare provider clamps, cuts the cord, takes stimulatory measures to help the baby take his first breath, why the baby is sometimes "spanked" to encourage crying, breathing, many motivators, the baby to take the first breath, temperature change, light stimulation, physical stimulation, lack of oxygen supply, the cord is cut, negative pressure, in the chest cavity resulting, recoil, the chest after exiting the vaginal canal, once the cord is cut, baby takes his first breath, a number of changes occur, in the newborn's vascular system, increased oxygen, in the lungs causes, a decrease in blood flow resistance, lungs, an increase, in the blood flow resistance, the body's vessels, lack of umbilical blood flow, decreased pulmonary vascular resistance, increased systemic vascular resistance cause a closure, the foramen ovale, all the other vascular, blood supply, peculiarities, the fetus begin to constrict, eventually turn into supporting ligaments, no vascular responsibilities, the newborn's blood flow is internalized, gas exchange occurs, in the lungs, waste products, removed, urination, defecation, nutrition is obtained, the digestive system, newborn undergoes dramatic changes, in the processes that sustain life, new methods take some time to fully adapt, become permanent.