Week 3-Cardio Anatomy Flashcards
How many lobes do the left and right lungs have?
Left - 2 Superior and Inferior
Right - 3 Superior, Middle, and Inferior lobes
Name all four major heart valves
Aortic Valve
Bicuspid Valve
Pulmonary Valve
Tricuspid Valve
Where is the Aortic Valve located?
Between the LV and the Aorta
Where is the Bicuspid Valve located?
Between the LA and the LV
Where is the Pulmonary Valve located?
Between the RV and the pulmonary artery
Where is the Tricuspid Valve located?
Between the RA and the RV
What is the Systole Phase?
The contraction of the heart muscle that pumps blood out
What is the Diastole Phase?
The relaxation of the heart muscle that allows the heart to refill with blood
Which side of the heart moves Oxygenated Blood?
Left
Which side of the heart moves Deoxygenated Blood?
Right
What is the formula for Cardiac Output?
Heart Rate x Stroke Volume
What is Cardiac Output?
The volume of blood ejected from 1 ventricle into the aorta or pulmonary artery each minute.
Explain Frank-Starling Law of the Heart
An increased preload of blood causes the cardiac muscle cells to contract with more force and produce a higher stroke volume.
What is the formula for stroke volume?
End-diastolic volume (EDV) minus end-systolic volume (ESV)
What is stroke volume?
The amount of blood ejected from 1 ventricle with each beat
What is the primary electrode placement on 3 Lead ECG
Right arm - Red
Left arm – Yellow
Left leg– Green
Right leg – Black
Name the ten questions in the Ten-Step Tool
- What is the rate?
- What is the rhythm?
- Are there P waves present?
- Is there a T wave present?
- Is there a QRS complex after every P wave?
- Is there a P wave before every QRS complex?
- Is the ST segment isoelectric?
- What is the PR interval?
- What is the duration of the QRS complex?
- What is the duration of the Q-T interval?
What is the clinical name for the standard rhythm of a healthy heart?
Normal Sinus Rhythm
What is the standard HR for a Normal Sinus Rhythm?
60-100 bpm
Which wave precedes QRS complex?
P Wave
What is the standard time for PR Interval for Normal Sinus Rhythm?
0.12s - 0.20s
What is the standard time for QT Interval for Normal Sinus Rhythm?
0.35s to 0.43s
What does the ST Segment connect?
QRS complex to T wave
What is the standard time for QRS Complex for Normal Sinus Rhythm?
0.12s
What time does each small square on an ECG represent?
0.04s
What time does each big square on an ECG represent?
0.2s
How to calculate HR on a ECG?
Count the large squares between each R-R interval.
Divide 300 by the number of large
squares between both R
E.g. HR = 300 / 4 = 75 bpm.
The clinical term for HR < 60bpm
Sinus Bradycardia
The clinical term for HR >100bpm
Sinus Tachycardia
What is the standard time for PR Interval for Sinus Bradycardia?
0.12s to 0.2s
What is the standard time for QRS Complex for Sinus Bradycardia?
0.12s
Are P waves present in Sinus Bradycardia?
Yes
Is the ST segment isoelectric in Sinus Bradycardia?
Yes
What is the standard time for QT Interval for Sinus Bradycardia?
0.35s to 0.43s
Are T waves present in Sinus Bradycardia?
Yes
Are T waves present in Sinus Tachycardia?
Yes
Are P waves present in Sinus Tachycardia?
Yes
What is the standard time for PR Interval for Sinus Tachycardia?
0.12s to 0.2s
What is the standard time for QRS Complex for Sinus Tachycardia?
0.12s
Are P waves present in Sinus Tachycardia?
Yes
Is the ST segment isoelectric in Sinus Tachycardia?
Yes
What is the standard time for QT Interval for Sinus Tachycardia?
0.35s to 0.43s
Are P Waves present in Ventricular Fibrillation ?
No
Is QRS complex regular in Ventricular Fibrillation?
No
What is Ventricular Fibrillation?
Abnormal heart rhythm in which the ventricles of the heart quiver and ineffectively pump blood
Are T Waves present in Ventricular Fibrillation?
No
There is an isoelectric line in Ventricular Fibrillation
True or False?
False
What does the QRS complex represent?
Depolarisation of ventricles
What does P Wave represent?
Depolarisation of the atria
What does T wave represent?
Repolarisation of the ventricles
What is the difference between VT and VF?
VF - The ventricles contract in an uncoordinated manner
VT - The ventricles contract in a rapid coordination
Is QRS complex regular in Ventricular Tachycardia?
Yes
What is the standard time for QRS Complex for Ventricular Tachycardia?
> 0.12s
Are there P waves in VT?
No
What is the standard time for P Waves in Asystole?
No P waves
What is the standard time for QRS Complex in Asystole?
No QRS
What is the standard time for T Waves in Asystole?
No T Waves
What three distinct layers do Arteries and veins have?
◦ Tunica Interna
◦ Tunica Media
◦ Tunica External
3 Main Layers of the Heart
Epicardium
Myocardium
Endocardium
Layer, Composition and Function of Epicardium
Outer
Mesothelial and connective Tissue
Reduce friction
Layer, Composition and Function of Myocardium
Middle
Cardiac Muscle Tissue
Contraction
Layer, Composition and Function of Endocardium
Inner
Endothelium
Lines the inside of the heart valves and large Blood vessels
Is Sinus Bradycardia a shockable rhythm?
No
Is Sinus Tachycardia a shockable rhythm?
no
Is Ventricular Tachycardia a Shockable Rhythm?
Yes
Is Ventricular Fibrillation a Shockable Rhythm?
Yes
Is Asystole a Shockable Rhythm?
No
Is PEA a Shockable Rhythm?
No