Just the right amount. There is good cholesterol and bad cholesteol, you have to pay attention to which is which when it comes to what you eat
Physical activity increases blood flow and oxygen intake which has positive influences on every aspect of health.
Some reminders are necessary:
Artery does not have valves, the blood pressure on it is very high, there is no risk of blood backflow, so it does not need valves
Arteries are vessels that transport blood from the heart to capillaries.
Veins are vessels that transport blood back to the heart from capillaries.
According to these reminders, you could conclude that:
A is false (no backflow in arteries)
C is false (no backflow in arteries)
D is false ( veins take blood to the heart)
so the right answer is B
Qualified healthcare profesional
