67: The Heart Quizellenj2022-12-02T15:59:07-05:00 Please sign up for the course before taking this quiz. 1. Which of these blood vessels brings low-oxygen blood from the body into the heart?1 aorta vena cava pulmonary arteries 2. Which chambers have a semilunar valve at the top?1 atria ventricles 3. The definition of a “vein” is that it carries blood that is low in oxygen.1 True False 4. What does the SA node do?1 Receives an electrical signal and then transfers it on to the ventricles. Sends out an electrical signal that initiates contraction. Causes the heart rate to speed up when you exercise. 5. The heart is actual two separate pumps sitting side by side.1 True False 6. The inside of the heart contains lots of “strings.” What do these strings do?1 They tie the atria to the ventricles. They anchor the valve flaps to the walls of the ventricles. They keep the two sides of the heart together. They help the heart to contract. 7. The word root “pulmo” is always associated with the lungs.1 True False 8. What is the name of the membrane bag that surrounds the heart?1 pericardium septum myocardium 9. What is the technical term for phase of the cardiac cycle when the chambers are contracting?1 diastole systole 10. Another name for the tricuspid valve is the mitral valve.1 True False 11. What do the coronary arteries do?1 Receive blood from the lungs. Go off the top of the aorta and take blood to the head and arms. Take blood to the lungs. Supply the cells of the heart muscle tissue. 12. The contraction of the chambers is what makes the lub dub sound of the heart beat.1 True False 13. Which blood vessel looks like a giant arch going over the top of the heart?1 aorta pulmonary artery superior vena cava pulmonary vein 14. What does the word root “brachio” mean?1 blood arms head heart 15. Where does the blood from the pulmonary arteries go?1 into the right atrium into the left atrium to the lungs to the body 78: Muscles (as organs) 80: Endocrine system : Overview Back to: 67: The Heart
