Crossword clues for ventricle
Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Ventricle \Ven"tri*cle\, n. [L. ventriculus the stomach, a ventricle, dim. of venter the belly: cf. F. ventricule. See Ventral.]
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(Anat.) 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.
Note: The principal ventricles of the brain are the fourth in the medulla, the third in the midbrain, the first and second, or lateral, ventricles in the cerebral hemispheres, all of which are connected with each other, and the fifth, or pseudoc[oe]le, situated between the hemispheres, in front of, or above, the fornix, and entirely disconnected with the other cavities. See Brain, and C[oe]lia.
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The stomach. [Obs.]
Whether I will or not, while I live, my heart beats, and my ventricle digests what is in it.
--Sir M. Hale. -
Fig.: Any cavity, or hollow place, in which any function may be conceived of as operating.
These [ideas] are begot on the ventricle of memory.
--Shak.
Douglas Harper's Etymology Dictionary
late 14c., "small chamber or cavity within a bodily organ," especially of the heart, from Latin ventriculus (in reference to the heart, ventriculus cordis), literally "little belly," diminutive of venter (genitive ventris) "belly" (see ventral).
Wiktionary
n. 1 (context anatomy zoology English) Any small cavity within a body; a hollow part or organ, especially: 2 # (context anatomy English) One of two lower chambers of the heart. 3 # (context anatomy English) One of four cavity in the brain. 4 # (context archaic anatomy zoology English) The stomach. 5 # (context archaic English) The womb.
WordNet
n. one of four connected cavities in the brain; is continuous with the central canal of the spinal cord and contains cerebrospinal fluid
a chamber of the heart that receives blood from an atrium and pumps it to the arteries [syn: heart ventricle]
Wikipedia
In the heart, a ventricle is one of two large chambers that collect and expel blood received from an atrium towards the peripheral beds within the body and lungs. The atrium (an adjacent/upper heart chamber that is smaller than a ventricle) primes the pump. Interventricular means between the ventricles (for example the interventricular septum), while intraventricular means within one ventricle (for example an intraventricular block).
In a four-chambered heart, such as that in humans, there are two ventricles that operate in a double circulatory system: the right ventricle pumps blood into the pulmonary circulation to the lungs, and the left ventricle pumps blood into the systemic circulation through the aorta.
Ventricle may refer to:
- Ventricle (heart), the pumping chambers of the heart
- Ventricular system in the brain
- Ventricle of the larynx, a structure in the larynx
Usage examples of "ventricle".
We have treated the brain, not as a mass of organs radiating from the medulla oblongata as their real center, but as two cerebral masses, each of which is developed around the great ventricle.
I had a tumour, a medulloblastoma, blocking one of the fluid-filled ventricles in my brain, raising the pressure in my skull.
The pulse is described as a wave of distension and elongation felt in an artery wall due to the contraction of the left ventricle forcing about 90 millilitres of blood into the already full aorta.
The impoverished condition of the blood, which led to serous effusions within the ventricles of the brain, and around the brain and spinal cord, and into the pericardial and abdominal cavities, was gradually induced by the action of several causes, but chiefly by the character of the food.
A device, with hundreds of hair thin needles, pierces the scalp and produces a detailed 3-D map, a grid, which gives us the precise location of the ridges of the hippocampus ventricle and the pineal gland.
Each of the abnormalities that defined the disease: ventricular septum defect, stenosis of the pulmonary valve, a displaced aorta, and an enlarged right ventricle were present.
A thrombus had blocked off the right coronary artery, strangling the flow of blood to the muscle of the right ventricle.
Thus, in obstruction of the orifice at the junction of the aorta with the left ventricle, one of the most frequent of valvular lesions, a murmur, generally harsh in character, is heard with the first sound of the heart, with greatest intensity directly over the normal position or the aortic semilunar valves.
There is a resultant active circulation of the fluid from the chorioid plexuses, where it leaks out of the blood, through the ventricles, out into the sub-arachnoid space, and through the arachnoid villi, where it is absorbed back into the blood.
These hollows the central canal and the various ventricles are filled with cerebrospinal fluid.
The cerebrospinal fluid circulates through the various ventricles, and in the fourth ventricle escapes through tiny openings into the subarachnoid space outside the pia mater.
Since cerebrospinal fluid is continually seeping into the ventricles, it must be allowed to escape somewhere.
Buck mentions a case of hydatid cysts in the wall of the left ventricle, with rupture of the cysts and sudden death.
Some small hypothalamic proteins have been identified tentatively in the third ventricle of the brain, which connects the hypothalamus with the thalamus, a region also within the limbic system.
Schenck has seen the left ventricle deficient, and the Ephemerides, Behr, and Kerckring speak of a single ventricle only in the heart.