Hondros Bio117 Exam 3 - Questions & Answers

RA {Ans: The pacemaker of the heart is located in the myocardium of which chamber?}Ischemia {Ans: Which of the following refers to an insufficient blood supply to an organ or body part? lack of blood supply to a tissue}Which of the following contains oxygenated blood? {Ans: Pulmonary veins}vasopressors {Ans: }Which of the following is related to the mitral valve? {Ans: Bicuspid}Oxygen poor Carbon dioxide rich {Ans: Select all that apply >>>Which features are true of blood leaving the tissues, travelling towards the right atrium?}cardiac output {Ans: What do the heart rate and stroke volume determine?} {Ans: Which of the following carries unoxygenated (deoxygenated) blood? Correct Answer: Jugulars} {Ans: Select all >>> What is true about epinephrine and norepinephrine? Correct Answers: bind to beta-1 adrenergic receptors. secreted by the adrenal medulla. catecholamines} {Ans: What is the function of the ductus arteriosus? Correct Answer: It shunts blood away from the fetal lungs.} {Ans: Which direction does the blood flow through the foramen ovale in the fetus (before birth)? Correct Answer: from the right atrium to the left atrium.}pulmonic valve {Ans: right semilunar valve separating the right ventricle and pulmonary artery}