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- Figure 16.10 Which of the following statements about the circulatory system is false? a. Blood in the pulmonary vein is deoxygenated. b. Blood in the inferior vena cava is deoxygenated. c. Blood in the pulmonary artery is deoxygenated. d. Blood in the aorta is oxygenated.Figure 40.10 Which of the following statements about the circulatory system is false? Blood in the pulmonary vein is deoxygenated. Blood in the inferior vena cava is deoxygenated. Blood in the pulmonary artery is deoxygenated. Blood in the aorta is oxygenated.Crocodilians, birds, and mammals heart has lungs receive охудen-роor blood one atrium and one ventricle Fishes heart has two atria and two ventricles Amphibians and most reptiles heart has two atria and one ventricle two-circuit one-circuit pathway pathway Reset
- Which of the following structures of the heart is responsible for pumping the blood to the lungs? left atrium left ventricle right atrium right ventricle sinoatrial nodeInsect blood cells |are hemocites also carry oxygen circulate whole body including wing veins circulate only dorsal vessel | are generally redWrite the following structures into sequence as a drop of blood would pass them on the double circuit of a mammalian system. aorta to systemic arteries and arterioles aortic semilunar valve inferior and superior vena cavae left atrioventricular valve (also called biscupid or mitral valve) left atrium left ventricle pulmonary capillaries to venules pulmonary trunk/arteries to arterioles pulmonary semilunar valve pulmonary veins right atrioventricular valve (also called tricuspid valve) right atrium right ventricle systemic capillaries to venules and veins
- The pacemaker that determines the heart rate Purkinje fibers The electrical gateway to the ventricles AV bundle Sinoatrial (SA) node Signals leave the AV node and descend along this structure toward the apex Atrioventricular (AV) node Distributes the electrical excitation to the ventriclesWhat vein among the answers below delivers blood closest to the heart in both cats and humans? jugular veins great saphenous vein azygous vein O brachiocephalic veinsIn which animal does blood flow through a pulmocutaneous circulatory circuit before circulating through the rest of the body? insect fish frog annelid mollusc
- Which of the following is the correct sequence of blood flow in mammals? 1 2 3 4 pulmonary artery ⠀⠀ right atrium vena cava right ventricleWhich heart do you think is most efficient at delivering oxygen rich blood to the tissues? O 3 chambered heart of amphibians O4 chambered heart seen in reptiles that are not birds O 2 chambered hearts of most fish d bird. O4 chambered heart seen in mammalsWhich of the following is not correct regarding the heart? ventricular fibrillation occurs from autorhythmic cells firing out of sequence the majority of cells are contractile, very few are autorythmic the atria and the ventricles contract at the same time both ventricles contract almost at the same time
