Atrium vs. Ventricle

Atriumnoun

(architecture) A central room or space in ancient Roman homes, open to the sky in the middle; a similar space in other buildings.

Atriumnoun

(architecture) A square hall lit by daylight from above, into which rooms open at one or more levels.

Atriumnoun

(anatomy) A cavity, entrance, or passage.

Atriumnoun

(anatomy) One of two upper chambers of the heart.

Atriumnoun

(biology) Any enclosed sexine and nexine layers, widening toward the interior of the grain.

Atriumnoun

A square hall lighted from above, into which rooms open at one or more levels.

Atriumnoun

The main part of either auricle of the heart as distinct from the auricular appendix. Also, the whole articular portion of the heart.

Atriumnoun

A cavity in ascidians into which the intestine and generative ducts open, and which also receives the water from the gills. See Ascidioidea.

Atriumnoun

A cavity, entrance, or passage; as, the atrium, or atrial cavity, in the body wall of the amphioxus; an atrium of the infundibula of the lungs, etc.

Atriumnoun

any chamber that is connected to other chambers or passageways (especially one of the two upper chambers of the heart)

Atriumnoun

the central area in a building; open to the sky

Atriumnoun

an open-roofed entrance hall or central court in an ancient Roman house.

Atriumnoun

a central hall in a modern building, typically rising through several stories and having a glazed roof.

Atriumnoun

the forecourt of a large church built on the basilican plan.

Atriumnoun

each of the two upper cavities of the heart from which blood is passed to the ventricles. The right atrium receives deoxygenated blood from the veins of the body, the left atrium oxygenated blood from the pulmonary vein.

Ventriclenoun

Any small cavity within a body; a hollow part or organ, especially:

Ventriclenoun

(anatomy) One of two lower chambers of the heart.

Ventriclenoun

One of four cavities in the brain.

Ventriclenoun

The stomach.

Ventriclenoun

(archaic) The womb.

Ventriclenoun

A cavity, or one of the cavities, of an organ, as of the larynx or the brain; specifically, the posterior chamber, or one of the two posterior chambers, of the heart, which receives the blood from the auricle and forces it out from the heart. See Heart.

Ventriclenoun

The stomach.

Ventriclenoun

Fig.: Any cavity, or hollow place, in which any function may be conceived of as operating.

Ventriclenoun

one of four connected cavities in the brain; is continuous with the central canal of the spinal cord and contains cerebrospinal fluid

Ventriclenoun

a chamber of the heart that receives blood from an atrium and pumps it to the arteries