Arteries are like the highways of your body, carrying oxygen-rich blood from the heart to every organ and tissue. Unlike veins, they have thick, elastic walls that can handle high pressure from the heart’s powerful pumps!

The artery is the blood vessel that carries high-pressured blood coming from your heart to the rest of your body. With this, they are relatively thicker and contain more elastic and muscle tissue compared to your veins. The artery has three distinct layers: the tunica intima (innermost), tunica media (middle), and the tunica adventitia or externa (outermost). The tunica intima is composed of simple squamous epithelial cells and is where the Internal Elastic Lamina (IEL) is found. The IEL aids in elasticity and separates the intima from the media. The tunica media is the thickest layer in the artery and is composed of muscle cells, elastic and collagen fibers. This is where the External Elastic Lamina (EEL) is found, separating the media from the adventitia. Lastly, the tunica adventitia is the outer most layer and is composed of connective tissues.

Arteries serve as the main transport routes for oxygen-rich blood, delivering it efficiently from the heart to the rest of the body. Their strong, elastic walls are built to withstand the force of blood pushed out with each heartbeat. This structure allows them to maintain steady blood flow even under high pressure.