a. capillaries, arteries, arterioles, veins, venules
b. arterioles, arteries, capillaries, veins, venules
c.veins, venules, capillaries, arterioles, arteries
d.arteries, arterioles, capillaries, venules, veins
2007-03-12 12:50:22 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Biology
blood flow from the heart is in the arteries. Blood flow to the heart is in the veins. (Except for pulmonary veins and arteries, which are reversed.) Heart, Arteries, arterioles, capillaries, capillary beds, venules, veins, Heart. A and B are definatly wrong, and C is correct if you start at the tissues and work back towards the heart, but D makes the most sense starting from the Heart and then returning.
D is the best answer.
2007-03-12 12:56:48 · answer #1 · answered by adamstivala 2 · 0⤊ 0⤋
D. You start with large arteries, then to arterioles (smaller), then to capillaries which distributes oxygen to tissues, then venules pick up deoxygenated blood, to the veins to be recycled back to pulmonary system to be reoxygenated.
2007-03-12 12:57:19 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Blood is circulated (in order) from the heart in arteries, connected to capillaries, connected to veins.
2007-03-12 13:26:08 · answer #3 · answered by AMTRAK 2 · 0⤊ 0⤋
d.
2007-03-12 12:56:30 · answer #4 · answered by Doctor J 7 · 0⤊ 0⤋