Which one of the following is a matching pair?  A Pulsation of the radial artery - values in the blood vessels B Dup - Sudden opening of semilunar valves at the beginning of ventricular diastole C Lubb - Sharp closure of AV valves at the beginning of ventricular systole D Initiation of the heart beat - Purkinje fibres

Q: Label in the diagram: 1. Sinoatrial node, 2. atrioventricular node, 3. bundle of His, the branches…

A: In this question, we are given a schematic diagram of the conduction system of heart. The labeling…

Q: Fill in the Blank: Match the number to the part of the heart in the flow of circulation. Superior…

A: The objective of the question is to identify the correct sequence of blood flow through the heart…

Q: Some people have abnormal cords or bridges of myocardium that extend from atrium to ventricle,…

A: The second most common type of coronary arterial abnormality is the Myocardial bridge. It is the…

Q: Which ion movement causes depolarization in the contractile cells of the heart? Ca++ leaving the…

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Q: what does the formation of the strip ventricular canal from the first heart field look like ?

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Q: Which of the following is TRUE of the cardiac action potential? O The cardiac action potential…

A: The muscle action potential is generated due to the contraction and relaxation of the muscle fiber.…

Q: Trace blood flow through the chambers and vessels of the pigeons heart. Use red for oxygenated blood…

A: The circulation of the birds is effective enough to meet the amount of oxygen needed for their…

Q: Leaky Na+ channels in the cells of the SA Node do which of the following?   a-allow a slow…

A: d-allow a slow depolarization that eventually reaches the threshold for voltage-gated Ca2+ channels.

Q: Which of the following statements is correct? Group of answer choices Veins carry blood away from…

A: Veins  Veins are blood vessels that carry blood towards the heart. Stenotic heart valve Valve that…

Q: Which of the following occurs during ventricular diastole? a-The ventricles contract to force blood…

A: During ventricular diastole, the following occur- b- The ventricles relax and refill with blood c-…

Q: If leaky Na+ channels in the cells of the SA Node became more leaky (allowed Na+ through at a faster…

A: Generation of the action potential is a significant characteristic of the cells of the sinoatrial…

Q: Which of the following contributes to 1st heart sound during systole? Select one: Flow of blood…

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Q: During an electrocardiogram, the T-wave represents atrial depolarization. QRS complex represents…

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Q: Drugs inhibiting sodium channels would most likely affect which of the following phases of the…

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Q: As a result of ventricular depolarization (T wave), calcium ions are returned to the sarcoplasmic…

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Q: Where is the pacemaker of the heart located? What is it called? Trace the path of electrical…

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Q: An embolus lodged in the circumflex artery could impair blood flow to what portion of the heart? O…

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Q: The second heart sound is caused by

A: Answer:  The Lub - Dup sound produced by the heart is basically the closing of the heart valves.

Q: 1)An increase in total peripheral resistance, all else remaining the same, will cause an increase in…

A: "Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: The onset of Ventricular diastole is associated with: A. the closing of the aortic valve B. the…

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Q: Which of the following is true about the pacemaker potential in the heart? a. Decreased K+ efflux…

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Q: The Greek anatomist Erasistratus, originally from Ceos, identified the correct function of the right…

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Q: The function of structure X is to Select one: a. act as the pacemaker of the heart. b. initiate the…

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Q: Which of the following statements are TRUE? Increasing ventricular pressure increases ventricular…

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Q: If the pressure in the ventricles is higher than the pressure in the atria, but lower than the…

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Q: The heart’s pacemaker is called the (complete term)_________. The pacemaker is composed of…

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Q: lar systole begins ventricular relaxation

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Q: A premature ventricular contraction (PVC) indicates which of the following

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Q: Which of the following is the correct circulatory sequence forblood to pass through part of the…

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Q: potential

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Q: hich of the following is true for the ejection phase of the cardiac cycle  select all that apply…

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Q: Considering the left ventricle, why does the ventricular volume have to decrease during ventricular…

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Q: What is the correct sequence for flow of blood in the heart? o Superior vena cava → right ventricle…

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Q: Which of these accounts for the similarity between the P wave duration and the QRS complex duration…

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Q: Which of the following are pacemakers of the heart? Choose all that apply. AV node SA node Cardiac…

A: Pacemakers- Electrical impulses generated by the heart muscle that causes the heart to beat…

Q: The second heart sound is caused by: a. closure of the aortic and pulmoary valvesb. vibrations in…

A: The objective of this question is to understand what causes the second heart sound in the cardiac…

Q: Valves between which structures of the heart shown in the figure control the direction of the…

A: The heart is located in the centre of the chest, just to the left of centre, about the size of a…

Q: ST Q In the ECG pictured, which part of the P-QRS-T pattern indicates where ventricular contraction…

A: ECG stands for electrocardiogram which is a electrical activity of hearts activity.