right atrium
2
4.1
- noun
- /raɪt ˈeɪtriəm/
- Specialized
:
aurícula derecha
- The sino-atrial (SA) node—a group of cells in the right atrium—fires off a signal to initiate each new heartbeat and contract the atria.
- thrombus in the right atrium
Examples
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Her postoperative transthoracic echocardiogram showed good right ventricular contractility with no residual thrombus in the right atrium.
Academic text (2007) -
The velocity in the ductus venosus reflects the pressure gradient between the umbilical vein and the right atrium.
Academic text (1991) -
The Proteus will proceed to the entrance of the right atrium, at which point the heart will be stopped, by electric shock.
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A case of a 67-year-old female with a history of breast cancer and a free-floating thrombus in the right atrium is presented.
Academic text (2007) -
The wire is guided up to the left atrium, and a hole is pierced through the atrial septal wall into the right atrium.
Academic text (2011) -
A specialized group of cells, called the sinus node, is located in the right atrium and sends electric impulses at regular intervals through heart fibers of the atria and ventricles.
Academic text (1998) -
The right atrium receives deoxygenated blood from the body before it moves to the right ventricle.
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When blood returns to the heart, it first enters the right atrium through large veins called the vena cavae.
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During the cardiac cycle, blood flows into the right atrium and then passes through the tricuspid valve.
Synonyms
A right upper chamber of the heart that receives blood from the body
Surface Forms
Morphology
The meaning is directly compositional: 'right' specifies the side and 'atrium' names an upper heart chamber, so together they denote the heart's right upper chamber that receives deoxygenated blood. This follows regular noun-modifier composition and common anatomical naming, making it immediately understandable to a learner who knows both constituents.
Etymology
Right atrium is a medical term that makes a simple picture: right = on the heart's right side and atrium = a small 'room' or entrance. This 'right room' collects the body's 'deoxygenated blood' and sends it to the next heart chamber, so the name shows its job.