Formative Assessment Week 1 and 2 Flashcards Preview

Y1 Cardiovascular > Formative Assessment Week 1 and 2 > Flashcards

Flashcards in Formative Assessment Week 1 and 2 Deck (9)
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1

The cardiac impulse normally originates in...?

the sino-atrial node

2

Regarding the cardiac impulse - the only point of electrical contact between the atria and the ventricles is?

the atrio-ventricular node

3

the cardiac impulse spreads from the AV node to the ?

the bundle of His

4

The bundle of His normally divides into?

right and left branches

5

Sympathetic stimulation causes...?

a positive chronotropic effect

6

in contractile cardiac muscles - the plateau phase of the action potential is mainly due to...?

Calcium influx through L-type channels

7

The P wave is caused by?

atrial depolarisation

8

The PR interval is measured from?

the end of the P wave to the beginning of the QRS complex

9

What occurs during the ST segment?

ventricular systole