QUESTION 5 Which of the following statements about venous blood pressure are true? Select ALL correct answers: Pressure in veins is much lower than pressure in arteries Arterial blood pressure fluctuates as the heart squeezes and relaxes, but venous blood pressure does not Valves in veins help prevent blood from flowing backward Contraction of skeletal muscles in the legs helps move venous blood back up towards the heart

Question 5 5. Would defibrillation be recommended for someone producing this electrocardiogram? yes no

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Question 7 Which of the following occurs to break up a clot after a vessel has healed? tissue plasminogen activator inhibtor, inhibits fibrin so the fibrin mesh can break dow O tissue plasminogen activator converts plasminogen into plasmin to induce fibrinolysis O Platelet-derived growth factor converts febrin into fibrinogen which breaks up the clo none of the above are true

Question 1 Which ECG component represents peak systole? O ST segment O P-R interval O P-R segment O TP segment

If the Mitral Valve failed in a patient, would the blood flow back into the Right Ventricle?    Question 6 options:   Only if the pulmonary semilunar valves also fail   Only if the aortic semilunar valves also fail    No, because the flow would be stopped by the bicuspid valve    No, because blood can only flow forward, never in the reverse direction.

Which of the following changes to blood flow is expected to occur as a result of dynamic exercise? Group of answer choices An increase in cardiac output of up to 5X normal An increase in the percent of blood flow to the skeletal muscle compared to at rest All of these occur An increase in ejection fraction

Dysrhythmia - Basic A Question 4 of 35 What is the cardiac rhythm? II 3 wh Sinus tachycardia Atrial fibrillation Atrial flutter Normal sinus rhythm Continue whichit Time Remaining whihihih Jones and Bartlett Publishers, 2012 Used with Permission

Question Identify the description with the correct vessel type - artery (A), capillary (C), or vein (V).   Carry blood away from the heart     Have the thickest walls     Converge to form veins     Have the lowest pressure     Carries the pulse     Most numerous blood vessels     Contains the most elastin to stretch and recoil     Carry blood to the heart     Branch to form capillaries     Have the highest pressure     Site of diffusion     Have valves     Most narrow diameter     Provide large surface area for exchange of materials (gases, nutrients, wastes)

QUESTION 9 What special structure do cardiac muscles have to distinguish it from the other kinds and types of tissues? striations lacunae intercalated discs goblet cells