What landmark of heart initiates the heartbeat? a) Mitral value b) Sino atrial n
ID: 84807 • Letter: W
Question
What landmark of heart initiates the heartbeat? a) Mitral value b) Sino atrial node c) Atrio ventricular node d) Purkinje What land mark of the heart regulates the electrical impulse of the heart's pacemaker to create a delay contraction of between the atria and the ventricles? (a) Papillary muscles b) Sino atrial node c) Atrio ventricular node (d) Mitral valve The ___ extends from the left ventricle and is the primary artery of the systemic circuit. a) Pulmonary vein (b) Superior vena cava c) Aorta d) Inferior vena cava A person who's heart does not beat regular pace (a) Might have a problem within their cardiac conduction system (b) Would be diagnosed with an arrhythmia (c) Could have a pacemaker installed to regulate the heartbeat (d) All of these A heart murmur refers to (a) Blockage of the coronary arteries (b) Faster than normal heartbeat (c) Acquired or congenital leakiness of one or more heart valves (d) Death of cardiac muscle due to oxygen deprivation e) Any of these could be a cause Which of the following is not true of arteries and veins? (a) They travel throughout the entire body (b) Arteries travel away from the hearts veins travel towards the heart (c) Both contain three main layers: connective tissue, smooth muscle, and endothelium (d) Only arteries have valves A healthy blood pressure for the average adult is around... (a) 6040 mmHg (b) 80 120 mmHg c) 120/80 mmHg (d) 14090 mmHg. Systolic blood pressure refers to the force of blood pushing against the walls of blood vessels as the heart contracts (a) True (b) False These vessels supply oxygenated blood to the neck, face, scalp, and brain... (a) Jugular veins (b) Common carotid arteries c) Subclavian arteries d) Radial artery Lightly pressing on this artery of the wrist allows one to check one's pulse... (a) Carotid artery b) liac artery c) Aorta (d) Radial arteryExplanation / Answer
51. Ans B. Heart beat initiate form Sino-atrial node.
52. Ans. C. Atrio-ventricular node regulates the electrical impulse of heart pacemaker to create a delay in contraction between atria and ventricles.
53. Ans. C. The Aorta extends from the left ventricle and is the primary artery of systemic circuit.
54. Ans. D. A person who’s heart does not beat at a regular pace “All of these”.
55. Ans. C. A heart murmur refers to acquired or congenital; leakiness of one or more valves.
56. Ans. D. Only arteries have valves—Statement is not true.
57. Ans. B. A healthy blood pressure in adult around 80/120 mmHg.
58. Ans. A. Systolic blood pressure refers to the force of blood pushing against the wall of blood vessel as the heart contracts. True.
59. Ans. B. Common carotid arteries supply oxygenated blood to neck, face, scalp, and brain.
60. Ans. D. Lightly pressing on radial artery of the wrist allows to check pulse.
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