EXER 2169 Lab 3

What are the 3 waves or deflections found in an ECG?

• P wave

  QRS wave

  T wave

• P complex

  QRS wave

  T complex

• P wave

  QRS complex

  T wave

• P interval

  QRS wave

  T complex

When the heart cell is relaxed it is ______

• polarized

• depolarized

• repolarized

What does the prefix poie- mean?

• make, produce

• weakness

• beside

• paralysis

What structures are found when an impulse travels through the heart? (multiple answers)

• SA node

• AV node

• bundle of His

  or

  AV bundle

• brachiocephalic trunk

• Purkinje fibers

What does the QRS interval in an ECG represent?

• Atrial depolarization

• Ventricular depolarization

• Ventricular repolarization

• Atrial repolarization

During ventricular ejection, are the SL waves opened or closed?

• closed

• opened

In 120/80 is 80 the systolic or diastolic blood pressure?

• systolic

• diastolic

Answer explanation

Diastolic = Down number

What word means slow heart rate?

• tachycardia

• bradycardia

• arrhythmia

• murmur

How many beat(s) are in the cardiac cycle?

• 3

• 5

• 10

• 1

What is considered normal BP?

• 140/90

• 120/80

• 180/120

• 80/120