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