semi-lunar valves which consist of two leaflets
Source: Holes's Human A&P, 12th ed., p 579
Semi - lunar
Veins take blood back to the heart.
Veins have valves in them which help transport the blood.
Veins
veins
VEINS ~ It's Arteries OUT and Veins BACK
Veins are blood vessels that carry blood from all parts of the body back to the heart.
Veins
Veins carry deoxygenated blood back the heart.
Systemic veins, not to be confused with pulmonary veins, carry oxygen poor blood back to the heart.
Veins carry the blood back after it delivered the oxygen.
Veins carry the blood to the heart to get oxygen back in it, while arteries carry the blood away from the heart.
Veins