Asked by Latasha Morris on Jul 17, 2024
Verified
The third heart sound can be heard ________.
A) contraction of the atria
B) when the semilunar valves close
C) when the AV valves close
D) when blood flows into the ventricles
Third Heart Sound
A very low-frequency heart sound that can be an indication of various heart conditions, often associated with heart failure.
Semilunar Valves
Valves in the heart that prevent the backflow of blood and are located between the ventricles and the major arteries.
AV Valves
The atrioventricular valves in the heart, which include the mitral valve and the tricuspid valve, regulating blood flow from the atria to the ventricles.
- Understand the clinical relevance of heart sounds and the conditions under which they are altered.
Verified Answer
PB
Pearlie BraddockJul 19, 2024
Final Answer :
D
Explanation :
The third heart sound is associated with the rapid filling phase of the ventricles, which occurs when blood flows into the ventricles from the atria. This sound is often described as a "ventricular gallop."
Learning Objectives
- Understand the clinical relevance of heart sounds and the conditions under which they are altered.