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- Write 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 veinsDescribe all the events (steps) that occur during a cardiac cycle for mammals (organisms with a double circulation). Please include in your description all the steps illustrated in slide #16 of the Cardiovascular System PowerPoint presentation (Lectures 5&6), as well as the opening and closing of all heart valves (refer to slide #21), and the signals arising from the SA and AV nodes (shown in slide #25). How does this cycle contribute to metabolic homeostasis for our cells, and what is the purpose of the valves?CIRCULATORY AND NERVOUS SYSTEMS OF THE CAT Provide a description and/or function of the following: Papillary muscles Mitral valve Ligament of Botallus Coronary sinus Pulmonary artery Pulmonary vein Sinoatrial node Epigastric veins Hemorrhoidal arteries Dura mater
- When the heart's electrical system misfires, it's called atrial [term]. The heart starts generating electrical impulses in more than one place, not just in the SA node.Which of the following ions is not directly involved in the myocardiocyte action potential? copper sodium calcium O potassiumThe events of the cardiac cycle cause cyclical changes in left ventricular pressure and volume over time. Another way to represent these events is with a pressure-volume loop, as shown below. Drag the labels from the left into the appropriate boxes on the pressure- volume loop to demonstrate your understanding of the cardiac cycle. Aortic valve closure AV valve opening Systolic pressure Isovolumetric relaxation Isovolumetric contraction 120 Diastolic pressure Ventricular filling 80 End-diastolic volume Ventricular ejection 40 AV valve closure End-systolic volume Aortic valve opening 60 120 LV volume (mL) O McGraw-Hill Education Reset LV pressure (mm Hg)
- What are some observations comparing the schematics of the fish and mammal circulatory systems? (Note: these are simplified schematics that don't show every single route for blood, so focus on the heart and the immediate inflow/outflow around the heart.)Hemodynamics are the dynamics of blood flow. Can the Bernoulli's equation be used to study hemodynamics in the cardiovascular system? Why or why not? You should discuss all four of the assumptions of Bernoulli's equation when answering this question. Jugular vein (also subclavian vein from arms) Pulmonary artery Superior vena cava Interior vena cava Hepatic vein Liver Hepatic portal vein Renal vein Iliac vein CO₂ CO₂ Head and arms Lungs Heart Kidneys Trunk and legs Carotid artery (also subclavian artery to arms) Pulmonary vein Aorta Hepatic artery Mesenteric arteries Digestive tract Renal artery Iliac arteryVena caRight atrium - Right ventricle - pulmonary arteries Which of the following is a normal range found in the human body? O A heartbeat of 60-90 beats/min 16-20 breaths/min Blood pressure of 80 mm Hg/120 mm Hg two of the above The plasma is a component of the blood that carries:
- Which of these accounts for the similarity between the P wave duration and the QRS complex duration despite the ventricle being much larger than the atria? Group of answer choices The His-Purkinje system has a faster conduction velocity than the atrial system The atria contain the same volume of blood as the ventricles Gravity increases the ventricular conduction velocity The rate of phase 4 depolarization is similar in all the conducting cells of the heartPut the following in proper order of blood flow for pulmonary and systemic circulation. 1 [ Choose ] [Choose ] Capillaries at the systemic organs (e.g. liver or kidney) Left side of the heart Right side of the heart Lungs 3 [ Choose ] 4 [ Choose ]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
