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Movement or flow with in a closed system, as the blood or CSF.
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the portion of the cardiovascular system which carries deoxygenated blood away from the heart, to the lungs, and returns oxygenated blood back to the heart.
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A&P The Heart
| Question | Answer |
|---|---|
| Movement or flow with in a closed system, as the blood or CSF. | Circulation |
| the portion of the cardiovascular system which carries deoxygenated blood away from the heart, to the lungs, and returns oxygenated blood back to the heart. | Pulmonary circulation |
| is the part of the cardiovascular system which carries oxygenated blood away from the heart to the body, and returns deoxygenated blood back to the heart. | Systemic circulation |
| Region between the lungs in the organs and vessels it contains. | Mediastinum |
| A modified plasma membrane in cardiac tissue that allows rapid transfer of electric impulses between cells. | Intercalated disks |
| Circulation of the heart muscle. | Coronary circulation |
| Extrasystole | Extra beat in the heart |
| Abnormal heart sound | Murmur |
| The normal increase in heart rate that occurs during inspiration | Sinus arrhythmia |
| Contraction | Systole |
| Relaxation | Diastole |
| Volume of blood pumped by each ventricle in one minute, it is the product of stroke volume and heart rate | Cardiac output |
| Amount of blood ejected from a ventricle with each beat. | Stroke volume |
| Asystole and dysystole | Cardiac cycle |
| The heart's pointed inferior portion is the ____. | Apex |
| The layer of the heart wall that pumps blood is the ____. | Myocardium |
| The heartbeat is initiated by electrical impulses from the ____. | Sinoatrial (SA) node |
| The sac that encloses the heart is the ___. | Pericardium |
| Any partition that separates chambers of the heart is called a ____. | Septum |
| Receives blood low in oxygen from the body | Right atrium |
| Receives blood high in oxygen from the lungs | Left atrium |
| Sends blood low in oxygen to the lungs | Right ventricle |
| Sends blood high in oxygen to the body | Left ventricle |
| Which of the structural characteristics promotes rapid transfer of electrical signals between cardiac muscle cells | Intercalated disks between the cells |
| What structure separates the upper chambers of the heart? | Interatrial septum |
| Which term describes one complete sequence of heart contraction and relaxation? | Cardiac cycle |
| Cardiac output is the product of which factors? | Stroke volume and heart rate |
| Which of the following sends impulses to the bundle of His? | Atrioventricular node |
| Which variation in heart rate can be due to changes in the rate and depth of breathing? | Sinus arrhythmia |
| The tissue layer of the heart that actually comes in contact with circulating blood is the ___. | Endocardium |
| The heart chamber pumps the blood into the lungs. | Right ventricle |
| The valve prevents blood from flowing back into the right ventricle during diastole. | Pulmonary valve |
| The volume of blood pumped by each ventricle in 1 minute is known as the ___. | Cardiac output |
| Blood pours into the heart from the head, chest, and arms via which blood vessel? | The superior vena cava |
| What do the chordae tendineae do? | Stabilize heart valve flaps to avoid back flow. |
| Which of these to not play a role in the heart's conduction system? â¢Purkinje fibers â¢atrioventricular bundle â¢mitral valve â¢sinoatrial node | Mitral vavle |
| What is true about the left ventricle? | It's the lower part of the heart and pumps blood high in oxygen to all parts of the body. |
| Extrasystole is ____. | A premature beat that comes before the expected normal beat, it is not rare. |
| A heart rate less than 60 bpm is call tachycardia | False |
| The apex of the heart is the superior portion of the heart. | False; the apex of the heart is the pointed portion at the bottom left side of the heart. |
| The valves through which blood leaves the heart are the atrioventricular valves. | False; the valves through which blood leaves the heart are the pulmonary and aortic semilunar valves. |
| The right atrium receives blood returning to the heart from the body tissues. | True |
| The sinoatrial node is also known as a pacemaker. | True |
| Blood high in oxygen leaves the heart via the pulmonary artery. | False, blood high in oxygen leaves the heart via the aorta. |
| The cells in the _____ have intercalated disks that allow rapid transfer for electrical impulses. | Myocardium |
| The outermost layer of the heart wall is the ___. | Epicardium |
| The ___ is the fibrous sac around the heart. | Pericardium |
| The ___ vessels form the heart's circulation system. | Coronary |
| The ___ are not part of the heart's conduction system. | Valve cusps |
| The ___ is also called the mitral valve | Left AV valve |
| The ___ drains blood from the myocardium into the right atrium. | Coronary sinus |
| The second heart sound, the "dup" sound, is heard in ___. | Diastole, when the semilunar valves abruptly close. |
| In preventing heart disease, ____ is a factor that cannot be changed to reduce one's risk of illness. | Body type |
| He ____ is the visceral layer of the serous pericardium. | Epicardium |
| The scientific name for the heart muscle is ____. | Myocardium |
| The fibrous sac that encloses the heart is the ____. | Pericardium |
| Each upper chamber of the heart is a(n) ____. | Atrium |
| A structure in a vessel or the heart that keeps moving in a forward direction is a ____. | Valve |
| An abnormal heart sound is a(n) ____. | Murmur |
| An instrument for studying the electrical activity of the heart is a(n) ___. | Electrocardiograph |
| A rapid heart rate is called ___. | Tachycardia |
| The vessel that carries blood out of the left ventricle is the ____. | Aorta |
| Exit valves are what | Semilunar |
| Had three cusps, when this valve is open, blood flows freely from the right atrium to the right ventricle. | The right atrioventricular valve (tricuspid valve) |
| Valve that that permits blood to flow freely from the left atrium to the left ventricle. The cusp closes when the left ventricle begins to contract and ensures the forward flow of blood to the aorta. | Mitral (bicuspid) valve |
| Semilunar valve located between the right ventricle and the pulmonary trunk that leads to the lungs. | Pulmonary valve |
| A semilunar valve located between the left ventricle and the aorta. | Aortic valve |
| Only the ______ comes into contact with the blood that flows through the heart chambers. | Endocardium |
| The _____ must have its own vessels to provide oxygen and nourishment and to remove waste products. | Myocardium |
| The main arteries that supply blood to the heart muscles are the what? | Right and left coronary |
Created by:
Haleycherie