7) which of the following has the thickest wall? A) left ventricle B) right ventricle C) left atrium D) right atrium 10) which blood vessels does blood enter during ventricle systole? A) pulmonary trunk and the pulmonary vein B) the pulmonary trunk and the aortaC) aorta and pulmonary veins D) aorta and vena cava 25- which heart chamber first receives blood directly from the superior and inferior vena cava? Left ventricle Right ventricle Left atrium Right atrium Fri Feb 19Today1:57 PMDownload Center- ZoomReview Test Submission: LecEx1S X/bbhosted.cuny.edu/webapps/assessment/review/review.jsp?attempt_id%3 10820Question 28The main effect of the parasympathetic nervous system on the heart is to:Answers:increase contractilitydecrease stroke volumedecrease heart rateincrease cardiac outputQuestion 29Failure of the left ventricle would cause:Answers:an increase in blood hydrostatic pressure in systemic capillariesan increase in blood hydrostatic pressure in capillaries of the lungsan increase in blood osmotic pressure in systemic capillariesan increase in blood osmotic pressure in capillaries of the lungsQuestion 30Venous return refers to the amount of blood being returned to the heart through veins. on 49Atrioventricular valves will open when:Answers:pressure in the ventricle is higher than pressure in the atriapressure in the ventricle is lower than pressure in the atriapressure in the ventricle is higher than pressure in the aortapressure in the ventricle is lower than pressure in the aortaestion 50When pressure is higher in the ventricle than in the atriaAnswers:atrioventricular valves will open to allow blood to move from the vena cava into the atriaatrioventricular valves will open to allow blood to move from the atria into the ventricleatrioventricular valves will close to stop blood going into the atria from the vena cavaatrioventricular valves will close to stop blood going into the atria from the ventricleday, February 19, 2021 1:52:11 PM ESTa

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Please note that the answer is provided for MCQ # 7 and # 10. As all of these are separate…