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 is the name of the membrane bag that surrounds the heart?1 pericardium myocardium septum 3. 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. 4. The heart is actual two separate pumps sitting side by side.1 True False 5. The contraction of the chambers is what makes the lub dub sound of the heart beat.1 True False 6. Which chambers have a semilunar valve at the top?1 atria ventricles 7. 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. 8. Where does the blood from the pulmonary arteries go?1 into the left atrium into the right atrium to the body to the lungs 9. Which of these blood vessels brings low-oxygen blood from the body into the heart?1 vena cava pulmonary arteries aorta 10. The definition of a “vein” is that it carries blood that is low in oxygen.1 True False 11. What does the word root “brachio” mean?1 blood head arms heart 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 blood vessel looks like a giant arch going over the top of the heart?1 aorta superior vena cava pulmonary vein pulmonary artery 14. Another name for the tricuspid valve is the mitral valve.1 True False 15. What is the technical term for phase of the cardiac cycle when the chambers are contracting?1 diastole systole 78: Muscles (as organs) 80: Endocrine system : Overview Back to: 67: The Heart
