The heart chamber that receives oxygenated blood from the lungs of animals with a double circulation is the a. left atrium. b. right ventricle. c. left ventricle. d. right atrium.
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The heart chamber that receives oxygenated blood from the lungs of
animals with a double circulation is the
a. left atrium.
b. right ventricle.
c. left ventricle.
d. right atrium.
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- Which of the choices below best describes the systemic circulation of blood?a. The flow of blood into the right atrium and eventually out of the left ventricle.b. The movement of blood from the pulmonary trunk, through capillaries into the pulmonary veins.c. The movement of blood into the coronary arteries, through capillaries into the coronary sinus.d. The movement of blood from the aorta, through arteries and capillaries and then eventually to the vena cavae.Which condition is the most common cause aging changes of the blood vessels? A. Arteriosclerosis B. Varicose veins C. Phlebitis D. All of the selection are causes Pathway of blood circulation in adult. A. Superior vena cava → right atrium → tricuspid valve à right ventricle B. Pulmonary vein → left atrium → mitral valve → left ventricle C. Left ventricle → aortic valve → ascending aorta → brachiocephalic D. Right ventricle → pulmonary valve → pulmonary trunk → pulmonary artery E. All pathways are correct.Which of the following is the best description of what happens in capillaries? A. Capillaries are surrounded by thicker smooth muscle moving blood cells to exchange nutrients and oxygen. B. Capillaries connect minor veins to major veins returning blood to the heart. C. Capillaries are the location where oxygen, carbon dioxide, and nutrients are exchanged with tissues at the cellular level. D. Capillaries are the site where blood mixes with interstitial fluid to allow for gas and nutrient exchange.
- Contractions in the heart are controlled via a well-regulated electrical signaling cascade that originates in pacemaker cells in the _______ node and is passed via internodal atrial pathways to the ________, the __________, the___, and to all parts of the _________. A. sinoatrial node B. ventricle C. Purkinje system D. Bundle of His E. atrioventricular nodeHearts of mammals are described to have double pump structure. Which choice explains the functional and structural basis for the said description? A. Blood enters the atrium and pumped into ventricle. B. Blood pressure alternates between systolic and diastolic at all times. C. Atrium provide 1 pump, ventricle provides 2nd pump. D. Heart pumps blood simultaneously in systemic and pulmonary circuit.In terms of being open or closed, what is the state of the mitral and tricuspid valve (left and right atrioventricular valves respectively) at the end of the first heart sound? a. Mitral is closed, Tricuspid is open b. Mitral is open, Tricuspid is closed c. Both are closed d. Both are open
- The only area of the heart that receives innervation from the brain is called the: A. Atrioventricular bundle B. Atrioventricular node C. Sinoatrial node D. Interatrial FiberThe systemic circulation ends at the: A.right atrium B. right ventricle C. left atrium D. left ventricle The period of ejection: A. begins with the first heart sound and ends with the opening of the AV-valve. B. begins with the second heart sound and ends with the closing of the AV-valve. C. begins with the second heart sound and ends with the opening of the Aortic-valve. D. begins with the opening of the Aortic-valve and ends with the second heart sound. The arterial p02 is relatively low in an individual suffering from congestive heart failur because: A. hemoglobin is mis-shapen and can't bind adequate 02 B. pulmonary ventilation is compromised by the decrease in arterial pCO2 bronchoconstriction increases the total amount of air in the alveoli 02 has difficulty diffusing through the fluid trapped in the lung tissue he volume of blood ejected by the heart per minute is termed: stroke volume cardiac output end diastolic volume end systolic volume ght and Left Ventricular Pressures are…The heart is located in the chest cavity in the space between the lungs called A. endocardium B. mediastinum C. median plane D. epicardium
- The tricuspid valve lies between the A. Right atrium and the right ventricle B. Left ventricle and the aorta C. Right ventricle and the pulmonary artery D. Left atrium and the left ventricleWhich of following is correctly matched? a. Tricuspid valve- permits blood low from right to let atrium b. Pulmonary valve- permits blood low from let ventricle to aorta c. Mitral valve- permits blood low from let atrium to let ventricle d. Aoric valve- permits blood low from right ventricle to pulmonary arteryWhich is not true about our heart A. ventricular systole squeezes blood to the lungs and the body B. Both ventricles hold the same volume of blood C. The pacemaker is in the right atrium D. blood from the left lung goes to the left atrium and blood from the right lung goes to the right atrium