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