Question

UMBILICAL ARTERY
UMBILICAL_CORD
AND UMBILICAL
IN WHICH
VEINS ARE
PRESENI,
CONTAIN :
el 100%. FOETAL BLOOD
(2) 50%. FOETAL AND 50%. MOTHER'S BLOOD
(3) 100% MOTHER'S Blood
(4 75% FOETAL BLOOD
AND 25%. MOTHER'S BLOOD

Answer 1

Answer:

From the aorta, blood is sent to the heart muscle itself and to the brain and arms. After circulating there, the blood returns to the right atrium of the heart through the superior vena cava. Very little of this less oxygenated blood mixes with the oxygenated blood. Instead of going back through the foramen ovale, it goes into the right ventricle.