vein
Valves are especially important in limb veins. This topic is part of Human Body within Science & Nature. This page currently draws on 15 supporting questions, with answers and bonus facts available below.
vein trivia questions
Veins generally carry blood in what direction?
Answer: Toward the heart
Bonus fact: Arteries generally carry blood away from the heart.
What structures in many veins help prevent backflow?
Answer: Valves
Bonus fact: Valves are especially important in limb veins.
Which large vein returns blood from the lower body to the heart?
Answer: Inferior vena cava
Bonus fact: It empties into the right atrium.
Which mold gives blue cheeses such as Roquefort their characteristic blue-green veins?
Answer: Penicillium
Bonus fact: Selected Penicillium molds create the distinctive flavor and veining of blue cheeses.
What tissue carries water upward through leaf veins?
Answer: Xylem
Bonus fact: Xylem transports water and dissolved minerals.
Angiography is medical imaging used to view what?
Answer: Blood vessels
Bonus fact: Angiography maps arteries and veins.
An angiogram is used to image what?
Answer: Blood vessels
Bonus fact: Angiography shows arteries or veins.
Arteries generally carry blood in what direction?
Answer: Away from the heart
Bonus fact: Veins generally return blood toward the heart.
Capillaries are the body's smallest what?
Answer: Blood vessels
Bonus fact: They connect small arteries and veins.
How many blood vessels are normally present in a human umbilical cord?
Answer: Three
Bonus fact: There are usually two arteries and one vein.
Which umbilical vessel carries oxygen-rich blood toward the fetus?
Answer: Umbilical vein
Bonus fact: The vein returns oxygenated blood from the placenta.
What kind of blood does the pulmonary artery carry from the heart toward the lungs?
Answer: Oxygen-poor blood
Bonus fact: The pulmonary veins return oxygen-rich blood from the lungs to the left side of the heart.