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