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atrium

atrium

6 6.9
A chamber in the heart that gets blood from the veins
  • noun
  • /ˈeɪ.tri.əm/
  • Specialized
translation icon : aurícula
  • After oxygenating the blood in the lungs, it flows into the left atrium of the heart.
  • right atrium
  • left atrium
  • atrium and right ventricle

That's called the reservoir effect of the of the atrium.

Examples

  • Direction of flow was confirmed, and flow delivery into the atrium was traced by color Doppler imaging.

    Academic text (1991)
  • Her postoperative transthoracic echocardiogram showed good right ventricular contractility with no residual thrombus in the right atrium.

    Academic text (2007)
  • The wound to the atrium in the heart was the fatal one.

  • The Proteus will proceed to the entrance of the right atrium, at which point the heart will be stopped, by electric shock.

  • The murmur results from blood leaking into the left atrium during systole.

    Academic text (2007)
  • 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 mitral or bicuspid valve allows blood to flow from the left atrium into the left ventricle during diastole.

    Academic text (2007)
  • The right atrium collects blood from the body before it is pumped into the right ventricle.

  • In a healthy heart, blood enters the left atrium before passing through the mitral valve to the left ventricle.

Synonyms

atrium (of the heart)
vsatrium
  • Specialized
1 4.8

One of two upper heart chambers that get blood from veins and push it to lower chambers

is broader and also means any chamber linked to other chambers or passageways
atrium cordis
vsatrium
  • Specialized
7.2

The upper chamber in each side of the heart that receives blood before it goes to the lower chamber

is general and applies to any chamber connected to others not only the heart

Compounds

right atrium
  • Specialized
2 4.1

The top right part of the heart that receives blood without oxygen from the body

left atrium
  • Specialized
1 4.5

Upper left part of the heart that gets oxygen-rich blood from the lungs and sends it to the left ventricle

atrium (of the heart)
  • Specialized
1 4.8

One of two upper heart chambers that get blood from veins and push it to lower chambers

atrium dextrum
  • Specialized
8.6

A right upper chamber of the heart that receives blood from the body

atrium cordis
  • Specialized
7.2

The upper chamber in each side of the heart that receives blood before it goes to the lower chamber

atrium sinistrum
  • Specialized
8.6

The left upper chamber of the heart that receives oxygen rich blood from the lungs

A small blood vessel on the back wall of the left upper heart chamber that drains into the coronary sinus

Surface Forms

atrium singular
atria plural

Etymology

Atrium comes from the Latin atrium, the main room of a Roman house that received visitors, so in the body an atrium is like an 'entry room' of the heart that receives blood before it moves on.