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