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Cardiovascular Physiology Exam Questions with correct answers provided

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Cardiovascular Physiology Exam Questions with correct answers provided Which chamber has more pressure - ☑ ☑ Pressure in Atrium Av valves open - ☑☑ During atrial contraction and allow blood to flow only to ventricles 1st heart sound is generated by what? - ☑ ☑ Closure of AV valves semilunar valves open - ☑ ☑ During ventricular contraction and allow blood to flow only into arteries 2nd heart sound is generated by what? ☑ ☑Closure of semilunar valves Autorythythmic cells are concentrated where? ☑ ☑ Sinoatrial node located in the RA What are generated in SA node - ☑☑ Spontaneous depolarizations

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Cardiovascular Physiology Exam Questions
with correct answers provided
Which chamber has more pressure - ✅✅Pressure in Atrium



Av valves open - ✅✅During atrial contraction and allow blood to flow only to ventricles



1st heart sound is generated by what? - ✅✅Closure of AV valves



semilunar valves open - ✅✅During ventricular contraction and allow blood to flow only into arteries



2nd heart sound is generated by what? - ✅✅Closure of semilunar valves



Autorythythmic cells are concentrated where? - ✅✅Sinoatrial node located in the RA



What are generated in SA node - ✅✅Spontaneous depolarizations



What do spontaneous depolarisations cause - ✅✅They pass into surrounding myocardial cells and

generate contraction as follows:

- Atrial myocardial cells

- Pause (fibrous layer)

- Ventricular myocardial cells



ECG detects what? - ✅✅depolarisation/repolarisation of cardiac tissue

- P wave: results from atrial depolarisation

- QRS wave: results from ventricular depolarization, atrial repolarization is hidden by this wave

- T wave: results from ventricular repolarization

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