atrium sinistrum Antonyms
No Synonyms and anytonyms found
Meaning of atrium sinistrum
Wordnet
atrium sinistrum (n)
the left upper chamber of the heart that receives blood from the pulmonary veins
atrium sinistrum Sentence Examples
- The atrium sinistrum, also known as the left atrium, is a chamber of the heart that receives oxygenated blood from the pulmonary veins.
- The walls of the atrium sinistrum are lined with smooth muscle fibers that contract rhythmically to pump blood into the left ventricle.
- The atrium sinistrum has a thin, fibrous layer called the epicardium that covers its outer surface.
- The atrium sinistrum is connected to the left ventricle by the mitral valve, which prevents blood from flowing back into the atrium.
- The atrial septum, a muscular wall, separates the atrium sinistrum from the right atrium.
- The foramen ovale, a small opening in the atrial septum, allows blood to flow between the two atria during fetal development.
- After birth, the foramen ovale closes, and the atrium sinistrum and right atrium become completely separated.
- Electrical impulses generated in the sinoatrial node (SAN) in the right atrium travel to the atrium sinistrum and trigger its contraction.
- The atrium sinistrum is located posteriorly to the left ventricle and superiorly to the right atrium.
- Enlargement of the atrium sinistrum can occur in conditions such as mitral valve stenosis and atrial fibrillation.
FAQs About the word atrium sinistrum
the left upper chamber of the heart that receives blood from the pulmonary veins
No synonyms found.
No antonyms found.
The atrium sinistrum, also known as the left atrium, is a chamber of the heart that receives oxygenated blood from the pulmonary veins.
The walls of the atrium sinistrum are lined with smooth muscle fibers that contract rhythmically to pump blood into the left ventricle.
The atrium sinistrum has a thin, fibrous layer called the epicardium that covers its outer surface.
The atrium sinistrum is connected to the left ventricle by the mitral valve, which prevents blood from flowing back into the atrium.
