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