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