Well, isn't that just a happy little question! In both fish and humans, the blood flows from the heart to the gills or lungs to get oxygenated, and then back to the heart to be pumped out to the rest of the body. It's like a beautiful dance of life happening inside every living creature, bringing oxygen and nutrients where they're needed most. Just remember, whether you're a fish swimming in the sea or a human exploring the land, your blood is always there, keeping you alive and thriving.
human
Blood flow in the human body is considered to be mostly laminar, meaning it flows smoothly in layers. However, it can become turbulent in certain situations, such as when blood vessels narrow or when there is a sudden change in flow direction.
forward
The change in direction of blood flow typically occurs at the level of the heart, which pumps oxygenated blood to the rest of the body through arteries and receives deoxygenated blood back through veins. The specific altitude at which changes in blood flow may occur can vary depending on factors such as oxygen levels, exertion, and individual health.
Veins.
Valves control the flow of blood. Without them blood could flow backwards.--------------------------Yes, true. Valve would maintain one way traffic for blood right from the heart and to outside parts of the body and form outside to the heart.
NO
valves
toward the heart from the lungs
Valves
yes :)
Valvs