left atrium
Definition
- Noun:
- The left upper chamber of the heart: The
left atriumis one of the four chambers of the heart. It is the upper chamber on the left side. - Function: Receives oxygenated blood: Its primary function is to receive oxygen-rich blood from the lungs via the pulmonary veins.
Usage Examples
- Noun:
- The
left atriumpumps blood into the left ventricle. - A common heart condition involves an enlarged
left atrium.
Advanced Usage
- Medical Context: The term is primarily used in anatomical, physiological, and medical contexts.
- Echocardiography can be used to assess the size and function of the
left atrium.
- In Relation to Other Chambers: Often mentioned with the other heart chambers (right atrium, left ventricle, right ventricle).
- Blood flows from the pulmonary veins into the
left atrium.
Variants and Related Words
- Left Atrial (adj): Pertaining to the left atrium.
- The patient was diagnosed with left atrial enlargement.
- Atrium (n): A general term for an upper chamber of the heart. The is a specific type.
- Pulmonary Veins (n): The veins that carry blood from the lungs to the .
Synonyms
- Left auricle: (Note: In older or less precise terminology, "auricle" was sometimes used interchangeably with "atrium," though they refer to slightly different structures. In modern precise usage, "left atrium" is standard.)
- LA: A common medical abbreviation.
Related Phrases
- Atrial fibrillation: A heart condition often originating in the atria, which can affect the .
- Atrial septal defect: A hole in the wall between the two atria, which can involve the .
Noun
-
the left upper chamber of the heart that receives blood from the pulmonary veins
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