EKG, Currents, blah blah blah

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15 Terms

1
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P wave

atrial depolarization

2
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QRS complex

ventricular depolarization

3
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T wave

ventricular repolarization

4
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PR interval

  • beginning of P wave to beginning of Q wave

  • initial depolarization of atria to initial depolarization of ventricles

  • AV conduction velocity

5
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QT interval

  • beginning of Q wave to end of T wave

  • entire interval of ventricular depolarization and repolarization

  • time for ventricle to contract, then relax

6
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ST segment

  • end of S wave to beginning of T wave

  • time that ventricles are depolarized

  • plateau phase of action potential

7
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INa

Nav1.5

8
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ICaL

Cav1.2

9
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ICaT

Cav3.1

10
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If

HCN2, HCN4

11
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Ito

Kv4.3

12
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IKs

Kv7.1 (KvLQT)

13
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IKr

Kv11

14
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IK1

Kir2.1 (inward rectifier)

15
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IKACh

Kir3.1+Ki43.4 (GPCR)