The correct spelling for 'direct murmur' is /dɪˈrɛkt/ /ˈmɜrmər/. The first part of the word, 'direct,' is spelled as it sounds. It is pronounced with a short 'i' sound as in 'did' and a hard 'c' sound. The second part, 'murmur,' is spelled with a silent 'b' and the short 'u' sound, as in 'hut.' The word is used to describe a heart murmur that occurs during the cycle of ventricular contraction and relaxation, which is directly related to the flow of blood within the heart.
A direct murmur is a specific type of abnormal heart sound that is heard during auscultation (listening with a stethoscope) of the heart. It is characterized by a sound that is directly transmitted from the heart to the chest wall. This type of murmur occurs when there is a disruption or disturbance in the normal blood flow through the heart or blood vessels.
Direct murmurs can be caused by various underlying conditions or structural abnormalities in the heart. For example, they may be caused by a defective heart valve, such as a leaky or narrowed valve. When a valve does not close properly, blood may flow in the opposite direction or become turbulent, creating abnormal sounds. Direct murmurs can also be associated with congenital heart defects, heart muscle abnormalities, or diseases that affect the blood vessels.
During auscultation, a direct murmur is typically identified by its location and timing within the cardiac cycle. The specific characteristics of the murmur, such as its pitch, loudness, and duration, can provide clues about the underlying cause. Additional diagnostic tests, such as echocardiography or Doppler ultrasound, may be necessary to further evaluate the murmur and determine its exact cause.
It is important to note that while a direct murmur may indicate an underlying heart condition, not all murmurs are pathological or require treatment. Some murmurs may be innocent or benign, especially in younger individuals, and may not be associated with any significant health risks. Consultation with a healthcare professional is necessary to accurately diagnose and manage any heart murmur.
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A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The term "direct murmur" is composed of two words: "direct" and "murmur".
1. "Direct" is derived from the Latin word "directus", which means "straight" or "leading in a straight line". It entered the English language through Old French in the 14th century.
2. "Murmur" originated from the Latin word "murmurare", which means "to murmur" or "to make a low, indistinct sound". It was also influenced by the Old French word "murmurer", which has the same meaning. The word "murmur" has been used in English since the 14th century.
When combined, "direct murmur" refers to a specific type of heart murmur that is heard directly over the heart, without the need for a stethoscope.