Khan Academy Static

At one stage or another in development, every friend you know had gill slits and a tail. Pretty crazy thought, huh? Fetal development is incredible, and it’s important to understand exactly how it happens. The structure and function of the circulatory system is incredibly complex, and fetuses are no exception. Find out how the heart and circulatory system work in the fetus!

15903_Fetal_hemoglobin_and_hematocrit.html

15904_Double_Bohr_effect.html

15901_Hypoxic_pulmonary_vasoconstriction.html

15898_Meet_the_placenta_.html

15907_Fetal_structures_in_an_adult.html

15899_Umbilical_vessels_and_the_ductus_venosus.html

15900_Flow_through_the_heart.html

15905_Fetal_circulation_right_before_birth.html

15906_Baby_circulation_right_after_birth.html

15902_Foramen_ovale_and_ductus_arteriosus.html