Fetal Circulation Flashcards
1
Q
Fetal heart rate
A
Depends on gestational age
160-170 beats/min in first trimester (slows w/ fetal growth)
110-160 near or at term
2
Q
Fetal circulation bypass
Ductus Arteriosus
Ductus venosus
Foramen ovale
A
Bypasses must close to allow blood flow through lungs/liver
Connects pulmonary artery - aorta = bypassing lungs
Connects umbilical vein and inferior vena cava = bypassing liver
Opening btwn left/right atria of the heart = by passes lungs
3
Q
Umbilical Cord
A
Contains 2 arteries and 1 vein
Arteries carry deoxygenated blood/waste away from baby
Veins carry oxygenated blood/oxygen/nutrients to baby
