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Question: revie w check your recall 1 the heart sounds 1...

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REVIE W Check Your Recall 1 The heart sounds $1 and $2 are caused by a. contraction of the ventricles b. closing of the atrioventricular and semilunar valves c opening of the atrioventricular and semilunar valives d. contraction of the atria and the ventricles 2 Which of the following terms refers to an abnormally elevated heart rate? b. Murmur c. Dysrhythmia d. Bradycardia. 3 What takes place at capillary beds? The amount of blood that flows to a tissue through capillary beds is called a. bruits 4 b. microcirculation C. tissue perfusion 19 d. capillary refill , which is a 5 Fill in the blanks: Blood pressure is determined by three factors:(1) , or the amount of blood pumped with each beat; (2) , or any impedance to blood flow, which is determined largely by the degree of in the systemic blood vessels; and (3) the product of heart rate and or The pressure in the arteries when the heart is contracting is the a. cardiac pressure b. osmotic pressure c. diastolic pressure d. systolic pressure 6 UNIT 19 523 Cardiovascular System-Part ll: Cardiovascular Physiology
blood pressure, and the actions of the parasympathetic The actions of the sympathetic nervous system nervous system a increase, decrease b. increase, increase c. decrease; increase d. decrease; decrease 7 blood pressure. 8 The T wave on an ECG represents a. depolarization of the atria. b. repolarization of the atria. C depolarization of the ventricles d. repolarization of the ventricles 9 Label the parts of the cardiac.conduction system on Figure 19.10. Atrioventricular bundl Right bundle branch Sinoatrial node terminal branches Atrioventricular node Left bundle branch Si undle nch ermina bundle Left eundle of anch RGURE 19.10 Anatomy of the cardiac conduction system. Exploring Anatomy & Physiology in the Laboratory
10 Label the parts of the electrocardiogram on Figure 19.11. 」T wave J P wave 」QRS complex P-R interval JS-T segment Q-T interval RIGURE 19.11 ECG tracing. Cardiovascular System-Part IlI: Cardiovascular Physiology UNIT 19
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