tiền tâm trương
Definition
- Noun (Medical/Biology):
- Prediastole: The brief phase in the cardiac cycle immediately preceding diastole, where the heart muscle begins to relax after contraction (systole) and ventricular pressure starts to drop, allowing for the initial passive filling of the ventricles.
Usage Examples
- Noun:
- Giai đoạn tiền tâm trương là một phần quan trọng của chu kỳ tim. (The prediastole phase is an important part of the cardiac cycle.)
- Áp lực trong tâm thất giảm xuống trong thời kỳ tiền tâm trương. (Pressure in the ventricles decreases during the prediastole period.)
Advanced Usage
- This term is highly specialized and used almost exclusively in medical, physiological, and biological contexts when describing the detailed mechanics of the heart.
- It is often discussed in relation to "tâm trương" (diastole) and "tâm thu" (systole) to explain the complete cardiac cycle.
Variants and Related Words
- Tâm trương (n): Diastole. The main phase of ventricular relaxation and filling.
- Huyết áp tâm trương phản ánh áp lực khi tim giãn ra. (Diastolic blood pressure reflects the pressure when the heart relaxes.)
- Tâm thu (n): Systole. The phase of ventricular contraction.
- Huyết áp tâm thu đo lực co bóp của tim. (Systolic blood pressure measures the force of the heart's contraction.)
- Chu kỳ tim (n): Cardiac cycle.
- Một chu kỳ tim bao gồm cả tâm thu và tâm trương. (A cardiac cycle includes both systole and diastole.)
Synonyms
- Prediastole: The direct technical synonym.
- Early diastolic relaxation phase: A descriptive synonym.
Notes on Usage
- "Tiền tâm trương" is a compound scientific term. It is not used in everyday conversation.
- In most general contexts, the broader term "tâm trương" (diastole) is sufficient. "Tiền tâm trương" is used for precise scientific discussion of specific timing within the cardiac cycle.