Podcast
Questions and Answers
Which pacemaker of the heart is located at the junction of the superior vena cava (SVC) and the right atrium (RA)?
Which pacemaker of the heart is located at the junction of the superior vena cava (SVC) and the right atrium (RA)?
- Sinoatrial Node (correct)
- HIS-Purkinje Network
- Bundle of HIS
- Atrioventricular Node
If a patient's heart is being paced by the HIS-Purkinje Network, what would be the expected firing rate?
If a patient's heart is being paced by the HIS-Purkinje Network, what would be the expected firing rate?
- >100 bpm
- 40-60 bpm
- 60-100 bpm
- <40 bpm (correct)
What is the approximate firing rate of the Atrioventricular Node?
What is the approximate firing rate of the Atrioventricular Node?
- 60-100 bpm
- 40-60 bpm (correct)
- More than 100 bpm
- Less than 40 bpm
Which pacemaker of the heart is located at the RA at the level of the septal leaflet and tricuspid valve?
Which pacemaker of the heart is located at the RA at the level of the septal leaflet and tricuspid valve?
Which part of the heart's pacemaking system features two major bundle branches?
Which part of the heart's pacemaking system features two major bundle branches?
What is the approximate sympathetic innervation firing rate of the Sinoatrial Node?
What is the approximate sympathetic innervation firing rate of the Sinoatrial Node?
Which of the following pacemakers has an atrial kick?
Which of the following pacemakers has an atrial kick?
The firing rate of the Atrioventricular Node is affected by sympathetic and parasympathetic innervation. What is the firing rate of the sympathetic nervous system?
The firing rate of the Atrioventricular Node is affected by sympathetic and parasympathetic innervation. What is the firing rate of the sympathetic nervous system?
Which pacemaker of the heart demonstrates no parasympathetic innervation?
Which pacemaker of the heart demonstrates no parasympathetic innervation?
What part of the heart is 'Bachman's Bundle' associated with, according to the material?
What part of the heart is 'Bachman's Bundle' associated with, according to the material?
Flashcards
Location of SA Node
Location of SA Node
The sinoatrial (SA) node is located at the junction of the superior vena cava (SVC) and right atrium (RA).
Location of AV Node
Location of AV Node
The atrioventricular (AV) node is located at the right atrium at the level of septal leaflet and tricuspid valve.
Location of the His-Purkinje Network
Location of the His-Purkinje Network
The His-Purkinje network is located in the ventricular conductions.
Firing Rate of SA Node
Firing Rate of SA Node
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Firing Rate of AV Node
Firing Rate of AV Node
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Firing Rate of His-Purkinje Network
Firing Rate of His-Purkinje Network
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ANS Innervation of SA Node
ANS Innervation of SA Node
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ANS Innervation of AV Node
ANS Innervation of AV Node
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ANS Innervation of His-Purkinje Network
ANS Innervation of His-Purkinje Network
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Misc Info: SA Node
Misc Info: SA Node
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Study Notes
- The material covers ECG Analysis Part 2
- An expert consultant, Richard P. Wilson, DNAP, CRNA, FAANA, is attributed to the context
Pacemakers of Heart
- Sinoatrial Node location is at the Junction of the SVC and RA
- Atrioventricular Node location is at the RA level of the septal leaflet and tricuspid valve
- HIS-Purkinje Network location is in the Ventricular conduction tissue
- Sinoatrial Node firing rate is 60-100 bpm
- Atrioventricular Node firing rate is 40-60 bpm
- HIS-Purkinje Network firing rate is less than 40 bpm
- ANS Innervation for Sinoatrial Node: Sympathetic = 100 bpm, Parasympathetic = <60 bpm
- ANS Innervation for Atrioventricular Node: Sympathetic = >60 bpm, Parasympathetic = <40 bpm
- ANS Innervation for HIS-Purkinje Network: Sympathetic = >40 bpm, Parasympathetic = N/A
- Additional info for Sinoatrial Node: Bachman's Bundle
- Additional info for Atrioventricular Node: Bundle of HIS, Atrial kick
- Additional info for HIS-Purkinje Network: 2 major bundle branches
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