Medium artery and vein

Arteries and veins of similar caliber often travel together along with nerves. They are surrounded by a connective tissue sheath forming a neurovascular bundle. In this image, compare the relative thicknesses of the tunica media (thicker in artery) and tunica adventitia (thicker in vein) in these medium-sized vessels. A valve is present in the vein and represents a modification of the tunica intima. These valves prevent the backflow of blood due to gravity. Valves are not present in arteries. 40x

Arteries and veins of similar caliber often travel together along with nerves. They are surrounded by a connective tissue sheath forming a neurovascular bundle. In this image, compare the relative thicknesses of the tunica media (thicker in artery) and tunica adventitia (thicker in vein) in these medium-sized vessels. A valve is present in the vein and represents a modification of the tunica intima. These valves prevent the backflow of blood due to gravity. Valves are not present in arteries. 40x

Arteries and veins of similar caliber often travel together along with nerves. They are surrounded by a connective tissue sheath forming a neurovascular bundle. In this image, compare the relative thicknesses of the tunica media (thicker in artery) and tunica adventitia (thicker in vein) in these medium-sized vessels. A valve is present in the vein and represents a modification of the tunica intima. These valves prevent the backflow of blood due to gravity. Valves are not present in arteries. 40x

Arteries and veins of similar caliber often travel together along with nerves. They are surrounded by a connective tissue sheath forming a neurovascular bundle. In this image, compare the relative thicknesses of the tunica media (thicker in artery) and tunica adventitia (thicker in vein) in these medium-sized vessels. A valve is present in the vein and represents a modification of the tunica intima. These valves prevent the backflow of blood due to gravity. Valves are not present in arteries. 40x

Arteries and veins of similar caliber often travel together along with nerves. They are surrounded by a connective tissue sheath forming a neurovascular bundle. In this image, compare the relative thicknesses of the tunica media (thicker in artery) and tunica adventitia (thicker in vein) in these medium-sized vessels. A valve is present in the vein and represents a modification of the tunica intima. These valves prevent the backflow of blood due to gravity. Valves are not present in arteries. 40x

Arteries and veins of similar caliber often travel together along with nerves. They are surrounded by a connective tissue sheath forming a neurovascular bundle. In this image, compare the relative thicknesses of the tunica media (thicker in artery) and tunica adventitia (thicker in vein) in these medium-sized vessels. A valve is present in the vein and represents a modification of the tunica intima. These valves prevent the backflow of blood due to gravity. Valves are not present in arteries. 40x

Arteries and veins of similar caliber often travel together along with nerves. They are surrounded by a connective tissue sheath forming a neurovascular bundle. In this image, compare the relative thicknesses of the tunica media (thicker in artery) and tunica adventitia (thicker in vein) in these medium-sized vessels. A valve is present in the vein and represents a modification of the tunica intima. These valves prevent the backflow of blood due to gravity. Valves are not present in arteries. 40x

Arteries and veins of similar caliber often travel together along with nerves. They are surrounded by a connective tissue sheath forming a neurovascular bundle. In this image, compare the relative thicknesses of the tunica media (thicker in artery) and tunica adventitia (thicker in vein) in these medium-sized vessels. A valve is present in the vein and represents a modification of the tunica intima. These valves prevent the backflow of blood due to gravity. Valves are not present in arteries. 40x