09 CAC Cardiology Word Scramble
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Question | Answer |
3 layers of the blood vessel. | Tunica intima, Tunica Media, Tunica Adventitia. |
Frank-Starling mechanism. | The more a cardiac muscle is stretched , the harder it will contract. |
Action Potential | Relationship between electrolytes (Sodium,Potassium,Calcium) |
Action Potential change in electrolytes. | Sodium moves IN, Potassium moves OUT, Calcium moves IN. |
Portion of heart Right Coronary perfuses. | Right Heart |
Portion of heart Left Coronary perfuses. | Left lateral wall and posterior portion of heart. |
Location of Pressoreceptor and Chemoreceptors. | Aortic Arch & Carotid Sinus of Carotid Arteries. |
Sino-Atrial Node | Located in right atrium. Intrinsic rate of 60-100. |
Atrio-Ventricular Node | Located in right atrium. Causes brief delay in impulse conduction so atria has time to contract and fill ventricles. Perfusion from right coronary. |
Bundle of His | Located in intraventricular septum. Intrinsic rate of 40-60. |
Bundle Branches | 1 on right side. 2-3 on left side. |
Purkinje Fibers | Last Pacemaker, Deep fiber network, intrinsic rate or 15-40. |
Types of 3 leads | Limb Leads, Augmented Leads, Precordial Leads. |
Limb Leads | Bipolar leads that represent the frontal plane activity. |
Augmented Leads | (AVL,AVR,AVF) Unipolar leads that allow for increased amplitude by 50% over limb leads. |
Precordial Leads | (V1,V2,V3,V4,V5,V6) Unipolar leads that look at horizontal plane of left ventricular. |
Dr. Einthovens theory | Left Arm is + or - , Right Arm is - , Left Leg is + , |
P Wave | (Atrial Depolarization) 2.5mm in height less then .08 seconds |
PR Interval | (Conduction of impulses from Sinus through Atria through AV Junction) .12 - .20 seconds. |
QRS | (Ventricular Depolarization) .10 seconds or less. |
First negative deflection from baseline before R Wave | Q Wave |
First positive Deflection, following Q if present. | R Wave |
Negative deflection following R Wave | S Wave |
ST Segment | (Begining of Ventricular Repolarization) ST Segments elevated 1mm or more suspect for ventricular ischemia or injury. |
T Wave | (Ventricular Repolarization) |
QT Interval | (Total ventricular depolarization & repolarization) .40-.44 seconds. Prolonged QT can indicate potential life threatening dysrhythmias. |
Small ECG Square | .04 seconds , 1 mm |
Large ECG Square | .20 seconds , 5 mm |
How many seconds in 15 Large Squares? | 3 seconds |
Ability to initiate an electrical impulse with out nervous system stimulation? | Automaticity |
Ability to recieve & respond to an electrical impulse? | Excitability |
Ability to contract when stimulated? | Contractility |
Strength of cardiac contraction? | Inotropic |
Influence on HR + chrontropic effect speed up HR | Chronotropic |
Pressure from flow of blood into Atria | Preload |
Movement of blood into ventricles w atria contraction | Atrial Kick |
Created by:
SullenFF
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