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