Hey i need help on my science studying. i am taking another test on the heart, and i am really nervous. What are two large veins that bring blood into the right atrium? How are arteries and veins different? What is the membrane around the heart called? Can you explain how the cornary blood vessels (arteries and veins) are important for the functioning of the heart? How are the walls of arteries and veins different? please anyone that can help me please, my teacher said these are going to be on the test. these are the things on the study guides that im not sure of. are there mabe some doctors that could give me some input. thank you.
2007-06-01 00:51:50 · 3 answers · asked by A girl 2 in Education & Reference ➔ Homework Help
The 2 large veins are the superior vena cava (coming from the top part of the body) and the inferior vena cava (blood from the lower part of the body)
Arteries carry blood away from the heart, veins carry blood toward the heart.
The membrane surrounding the heart is the pericardium.
Coronary vessels nourish the heart muscle itself.
Artery walls are thicker and more muscular while vein walls are thinner but contain valves to prevent the back-up of blood flow as blood returns to the heart.
Now, I don't know if this small amount of information is enough for your test or not. I would suggest you continue studying.
2007-06-01 01:24:17 · answer #1 · answered by dkrgrand 6 · 0⤊ 0⤋
Have you done any studying at all? Re-read your textbook or type "the heart" in your search engine. What have you been doing while all this was being taught?
2007-06-01 08:10:25 · answer #2 · answered by Elaine P...is for Poetry 7 · 0⤊ 0⤋
I'm sorry, i can't say anything about that
2007-06-01 08:24:41 · answer #3 · answered by ag4zt 1 · 0⤊ 0⤋