Instructions

Fig. 8 internal jugular vein External jugular vein internal carotid artery external carotid artery aorta anterior vena cava p

10. Deoxygenated blood from the body returns to the heart via two blood vessels:

……………………………………………………and………………………………………………………

11. These blood vessels empty into the chamber of the heart called the…………………………………

12. The blood then goes to the ……………………., from where it is pumped through the pulmonary trunk to the………………………………………….

13. Blood returns to the …………………………………….. of the heart.  Does the blood now contain oxygen?

14. Blood then enters the …………………………..…., from where it leaves the heart through a blood vessel called the………………………………… to be delivered to the body.

15. The blood vessels that carry blood to the heart are called________________. Name one such vessel

observed on your pig (see Fig. 8) and describe from where in the body this vessel obtains blood.

16. The blood vessels that carry blood away from the heart are called_______________. Name one

such vessel observed on your pig (see Fig. 8) and describe to where in the body this vessel delivers

blood.

17. What occurs when a coronary artery is blocked, and why? Hint: Read this handout and see unit

11.10 or figure 23.13 in your textbook.

18. Compare the right and left atria of the heart. From where does each atrium receive blood? Why

does one atrium have deoxygenated blood, while the other atrium has oxygenated blood?

19. Compare the right and left ventricles of the heart. To where does each ventricle deliver blood?

Which is larger (with the thickest muscles), and why?  Hint: Think about the distance that the blood

needs to travel after it leaves each ventricle.

20. What is the function of the ductus arteriosus? Is this vessel needed after birth?  Explain why or why

not.

Tired of low grades? We can help you write a successful essay that will boost your grades.

Order With Us Today!