Veins, unlike arteries, have valves that ensure blood only travels in one way.

Arteries and veins are types of blood vessels that transport blood around the body.

Arteries are thicker and stretchier to be able to handle the higher pressure of blood moving through them. Veins are thinner and less stretchy.

1. Deep Veins: These veins are located deep within the muscles and along bones. They are responsible for carrying the majority of blood back to the heart. Deep veins have valves that prevent blood from flowing backward.
2. Superficial Veins: These veins are located closer to the skin’s surface. They are smaller than deep veins and carry a smaller…[Read more]

Veins have much thinner walls than do arteries, largely because the pressure in veins is so much lower. Veins can widen (dilate) as the amount of fluid in them increases.

Direction of Blood Flow:
– Arteries: Carry blood away from the heart.
– Veins: Carry blood toward the heart.

Blood Oxygenation:
– Arteries: Generally carry oxygenated blood (except for pulmonary arteries).
– Veins: Generally carry deoxygenated blood (except for pulmonary veins).

Wall Structure:
– Arteries: Have thicker, more…[Read more]

Digestive system is the organ that take in food and liquids and break them down into substances that the body can use for energy, growth, and tissue repair.