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