The second heart sound ("dupp") is associated with closure of 3 1. 4 O 1 & 2 O 1 & 3 O 1 & 4 2.

Human Anatomy & Physiology (11th Edition)
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**The Second Heart Sound ("dupp") and Valve Closure**

The second heart sound, often described as "dupp," is associated with the closure of specific heart valves.

**Diagram Explanation:**

The image depicts a heart with numbered labels on four valves:

1. **Number 1**: This label likely indicates the location of the mitral valve.
2. **Number 2**: This may represent the aortic valve.
3. **Number 3**: This is potentially the location of the pulmonary valve.
4. **Number 4**: This label could indicate the tricuspid valve.

**Question:**

Which valves are closed during the second heart sound ("dupp")?

- [ ] 1 & 2
- [ ] 1 & 3
- [ ] 1 & 4

The second heart sound is typically associated with the closure of the aortic (2) and pulmonary (3) valves.
Transcribed Image Text:**The Second Heart Sound ("dupp") and Valve Closure** The second heart sound, often described as "dupp," is associated with the closure of specific heart valves. **Diagram Explanation:** The image depicts a heart with numbered labels on four valves: 1. **Number 1**: This label likely indicates the location of the mitral valve. 2. **Number 2**: This may represent the aortic valve. 3. **Number 3**: This is potentially the location of the pulmonary valve. 4. **Number 4**: This label could indicate the tricuspid valve. **Question:** Which valves are closed during the second heart sound ("dupp")? - [ ] 1 & 2 - [ ] 1 & 3 - [ ] 1 & 4 The second heart sound is typically associated with the closure of the aortic (2) and pulmonary (3) valves.
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