ventricle

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ventricle

 [ven´trĭ-k'l]
a small cavity or chamber, as in the brain or heart.
ventricle of Arantius
1. the rhomboid fossa, especially its lower end.
fourth ventricle a median cavity in the hindbrain, containing cerebrospinal fluid.
ventricle of larynx the space between the true and false vocal cords.
lateral ventricle the cavity in each cerebral hemisphere, derived from the cavity of the embryonic tube, containing cerebrospinal fluid.
left ventricle the lower chamber of the left side of the heart, which pumps oxygenated blood out through the aorta to all the tissues of the body.
Morgagni's ventricle ventricle of larynx.
pineal ventricle an extension of the third ventricle into the stalk of the pineal body.
right ventricle the lower chamber of the right side of the heart, which pumps venous blood through the pulmonary trunk and arteries to the capillaries of the lung.
third ventricle a narrow cleft below the corpus callosum, within the diencephalon between the two thalami.

ven·tri·cle

(ven'tri-kĕl), [TA]
A normal cavity, as of the brain or heart.
Synonym(s): ventriculus (2) [TA]
[L. ventriculus, dim. of venter, belly]

ventricle

/ven·tri·cle/ (ven´trĭ-k'l) a small cavity or chamber, as in the brain or heart.ventric´ular
ventricle of Arantius  the rhomboid fossa, especially its lower end.
double-inlet ventricle  a congenital anomaly in which both atrioventricular valves, or a single common atrioventricular valve, open into a single ventricle, which usually resembles the left ventricle morphologically (double-inlet left v.) but may resemble the right (double-inlet right v.) or neither or both ventricles.
double-outlet left ventricle  a rare anomaly in which both great arteries arise from the left ventricle, often associated with a hypoplastic right ventricle, ventricular septal defect, and other cardiac malformations.
double-outlet right ventricle  incomplete transposition of the great ventricles in which both the aorta and the pulmonary artery arise from the right ventricle, associated with a ventricular septal defect.
fifth ventricle  the median cleft between the two laminae of the septum pellucidum.
fourth ventricle of cerebrum  a median cavity in the hindbrain, containing cerebrospinal fluid.
ventricle of larynx  the space between the true and false vocal cords.
lateral ventricle of cerebrum  the cavity in each cerebral hemisphere, derived from the cavity of the embryonic tube, containing cerebrospinal fluid.
left ventricle of heart  the lower chamber of the left side of the heart, which pumps oxygenated blood out through the aorta to all the tissues of the body.
Morgagni's ventricle  v. of larynx.
pineal ventricle  an extension of the third ventricle into the stalk of the pineal body.
right ventricle of heart  the lower chamber of the right side of the heart, which pumps venous blood through the pulmonary trunk and arteries to the capillaries of the lungs.
third ventricle of cerebrum  a narrow cleft below the corpus callosum, within the diencephalon between the two thalami.
Verga's ventricle  an occasional space between the corpus callosum and fornix.

ventricle

(vĕn′trĭ-kəl)
n.
A small cavity or chamber within a body or organ, especially:
a. The chamber on the left side of the heart that receives arterial blood from the left atrium and contracts to force it into the aorta.
b. The chamber on the right side of the heart that receives venous blood from the right atrium and forces it into the pulmonary artery.
c. Any of the interconnecting cavities of the brain.

ventricle

[ven′trikəl]
Etymology: L, ventriculus, little belly
a small cavity, such as the right and the left ventricles of the heart or one of the cavities filled with cerebrospinal fluid in the brain.
enlarge picture
Ventricles of the brain

ven·tri·cle

(ven'tri-kĕl) [TA]
A normal cavity, as of the brain or heart.
Synonym(s): ventriculus (2) .
[L. ventriculus, dim. of venter, belly]

ventricle

(ven'tri-kl) [L. ventriculus, a little belly]
1. A small cavity.
Enlarge picture
VENTRICLES OF THE BRAIN: Left lateral view
2. One of the four, interconnected, ependyma-lined cavities inside the brain in which cerebrospinal fluid is generated continuously. See: illustration

ventricle of Arantius

See: Arantius, Julius Caesar

fifth ventricle

An unofficial name for the space between the two laminae of the septum pellucidum inside the brain.

fourth ventricle

The most caudal of the cerebrospinal fluid (CSF)-filled cavities inside the brain. The fourth ventricle extends beneath the cerebellum in the roof of the hindbrain from the caudal end of the cerebral aqueduct to the central canal of the medulla (above the middle of the olivary nuclei). The choroid plexus inside the fourth ventricle adds CSF to the fluid draining through the cerebral aqueduct from the third ventricle. CSF flows out of the fourth ventricle into the subarachnoid space surrounding the brain and spinal cord, exiting through three small openings: the median aperture (foramen of Magendie) and the two lateral apertures (foramina of Luschka).

laryngeal ventricle

Inside the larynx, the disk-shaped space below the vestibular folds and above the vocal folds.

lateral ventricle

One of the two mirror-image, cerebrospinal fluid (CSF)-filled cavities inside the cerebral hemispheres of the brain. Each lateral ventricle is C-shaped and runs parallel to the caudate nucleus and the fornix, from deep inside the frontal lobe to far into the temporal lobe; a tapering branch, the posterior horn, of each lateral ventricle extends deep into the occipital lobe. CSF from the intraventricular choroid plexus continually exits each lateral ventricle into the single third ventricle through an interventricular foramen (foramen of Monroe).

left ventricle

The muscular chamber of the heart that receives blood from the left atrium and that pumps it into the systemic circulation via the aorta.

ventricle of Morgagni

Laryngeal ventricle.

pineal ventricle

The pineal recess of the third ventricle of the brain.

right ventricle

The muscular chamber of the heart that receives blood from the right atrium and that pumps it into the lungs via the pulmonary trunk.

terminal ventricle

Ventriculus terminalis

third ventricle

The thin, disk-shaped cavity in the midline of the brain between the left and right thalami that is filled with cerebrospinal fluid (CSF). The lamina terminalis forms the front wall of the third ventricle, the fornices overlie the third ventricle, and the pineal body hangs outside the back top (dorsocaudal) corner. An extension of the third ventricle continues below the thalami and separates the walls of the left and right hypothalami. CSF flows through the two interventricular foramina into the rostral end of the third ventricle from the lateral ventricles. Along with CSF added by the choroid plexus of the third ventricle, CSF flows out of the third ventricle through the narrow cerebral aqueduct and into the fourth ventricle.
Synonym:

ventricle

A cavity or chamber filled with fluid, especially the two lower pumping chambers of the heart and the four fluid-filled spaces in the brain.

ventricle

  1. a chamber of the heart, having thick muscular walls, that receives blood from the ATRIUM, and pumps it to the arteries.
  2. four large spaces in the brain filled with CEREBROSPINAL FLUID. They occur in the CEREBRAL HEMISPHERES (lateral ventricles), FOREBRAIN (third ventricle) and MEDULLA OBLONGATA (fourth ventricle).

Ventricle

A cavity, as in the brain or heart. The right ventricle of the heart drives blood from the heart into the pulmonary artery, which supplies blood to the lungs.

ventricle

cavity within brain or heart
  • brain ventricle any one of several fluid-filled cavities within the brain, e.g. lateral (×2), third, fourth, and fifth ventricles

  • left ventricle thick-walled cavity on left inferior quadrant of heart receiving arterial blood from the atrium via the mitral valve, and which on contraction drives blood through the aortic valve into the ascending aorta

  • right ventricle thinner-walled cavity on right inferior quadrant of heart receiving venous blood from right atrium via the atrioventricular valve, and which on contraction drives blood through the pulmonary valve into the pulmonary artery

ven·tri·cle

(ven'tri-kĕl) [TA]
A normal cavity, as of the brain or heart.
[L. ventriculus, dim. of venter, belly]

ventricle (ven´trikəl),

n a small cavity, such as one of the cavities filled with cerebrospinal fluid in the brain, or the right or left ventricle of the heart.

ventricle

a small cavity or chamber, as in the brain or heart.
Enlarge picture
Ventricular system of the brain. By permission from Aspinall V, O'Reilly M, Introduction to Veterinary Anatomy and Physiology, Butterworth Heinemann, 2004

cardiac ventricle
the single fetal cardiac ventricle, formed by the looping of the bulboventricle; divided later by the growth of the interventricular septum as a projection from the wall of the bulboventricle.
fifth ventricle
the median cleft between the two laminae of the brain's septum lucidum.
fourth ventricle
a median, horizontally disposed, rhomboid cavity in the hindbrain, between the cerebellum and medulla, containing cerebrospinal fluid.
gastric ventricle
stomach.
laryngeal ventricle
a variably developed cavity of the larynx that opens into the laryngeal vestibule by a cleft between the vestibular and vocal folds; well developed in dogs and horses and especially certain apes.
lateral ventricle
the cavity in each cerebral hemisphere, derived from the cavity of the embryonic tube, containing cerebrospinal fluid and communicating with the third ventricle.
left ventricle
the lower chamber of the left side of the heart, which pumps oxygenated blood out through the aorta to all the tissues of the body.
pineal ventricle
an extension of the third ventricle into the stalk of the pineal body.
right ventricle
the lower chamber of the right side of the heart, which pumps venous blood through the pulmonary trunk and arteries to the capillaries of the lung.
third ventricle
a vertically disposed, ring-shaped space that contains cerebrospinal fluid and that communicates anteriorly with the lateral ventricles and caudally with the cerebral aqueduct within the diencephalon between the two thalami.