Left Atrium (Noun)
Meaning
The left upper chamber of the heart that receives blood from the pulmonary veins.
Classification
Nouns denoting body parts.
Examples
- The left atrium is a thin-walled chamber that acts as a reservoir for blood returning from the lungs.
- An abnormal heart rhythm originating in the left atrium can cause atrial fibrillation.
- The left atrium receives oxygen-rich blood from the four pulmonary veins that connect to it.
- During a heart transplant, the surgeon carefully connects the pulmonary veins to the new left atrium.
- In some cases of mitral valve disease, the left atrium can become enlarged, putting pressure on surrounding structures.