Pregunta
Special muscles inside the inner lower chambers that contract and help open and
close valves are called:
- chordae tendinae
- pectinate muscles
- papillary muscles
- auricular muscles
close valves are called:
Ask by Stephens Ray. in the United States
Mar 30,2025
Solución de inteligencia artificial de Upstudy
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- papillary muscles
Solución
The question asks for the name of special muscles that contract to help open and close valves in the heart.
Let’s analyze the provided options:
Let’s analyze the provided options:
- Chordae tendinae - These are fibrous cords that connect the papillary muscles to the heart valves, but they are not muscles themselves.
- Pectinate muscles - These are found in the atria of the heart and help with contraction but are not specifically for opening and closing valves.
- Papillary muscles - These are muscles located in the ventricles that contract to pull on the chordae tendinae, helping to open and close the heart valves.
- Auricular muscles - These are associated with the auricles of the heart but do not play a direct role in valve function.
Based on this analysis, the correct answer is the one that directly relates to the function of opening and closing valves.
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Simplifique esta solución Extra Insights
Did you know that papillary muscles play a pivotal role in maintaining heart function? These conical-shaped muscles attach to the heart’s valves via chordae tendineae, preventing the valves from inverting during the contraction of the ventricles. They are like tiny guardians, ensuring that blood flows in the right direction through the heart chambers!
In real-world applications, the efficiency of papillary muscles is crucial for heart health. When these muscles weaken or malfunction, it can lead to valve prolapse or heart murmurs, potentially impacting overall cardiovascular health. Staying active and managing blood pressure can help keep these tiny muscle “guards” strong and ready to do their important job!
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