67: The Heart Quizellenjmchenry2022-12-02T15:59:07-05:00 Please sign up for the course before taking this quiz. What is the name of the membrane bag that surrounds the heart?1 septum myocardium pericardium The word root “pulmo” is always associated with the lungs.1 True False What does the SA node do?1 Sends out an electrical signal that initiates contraction. Receives an electrical signal and then transfers it on to the ventricles. Causes the heart rate to speed up when you exercise. What does the word root “brachio” mean?1 arms heart blood head Which chambers have a semilunar valve at the top?1 atria ventricles What is the technical term for phase of the cardiac cycle when the chambers are contracting?1 diastole systole Another name for the tricuspid valve is the mitral valve.1 True False The contraction of the chambers is what makes the lub dub sound of the heart beat.1 True False The definition of a “vein” is that it carries blood that is low in oxygen.1 True False 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 anchor the valve flaps to the walls of the ventricles. They tie the atria to the ventricles. Which of these blood vessels brings low-oxygen blood from the body into the heart?1 pulmonary arteries aorta vena cava The heart is actual two separate pumps sitting side by side.1 True False Which blood vessel looks like a giant arch going over the top of the heart?1 pulmonary vein aorta pulmonary artery superior vena cava Where does the blood from the pulmonary arteries go?1 into the left atrium into the right atrium to the lungs to the body What do the coronary arteries do?1 Go off the top of the aorta and take blood to the head and arms. Receive blood from the lungs. Take blood to the lungs. Supply the cells of the heart muscle tissue. 78: Muscles (as organs) 80: Endocrine system : Overview Back to: 67: The Heart
